I want them to learn how to do carpentry and build a desk

The desk will need pieces joined together solidly — screws and glue are the backbone of most beginner carpentry joints, and getting this right now means your desk won't wobble or fall apart later. Using two scrap pieces of wood, practice a basic butt joint: apply a thin, even line of wood glue to one face, press the pieces together, wipe excess glue with a damp cloth, clamp them, and let sit for 20 minutes. Then practice a screw joint: pre-drill a pilot hole (slightly smaller than your screw) to prevent splitting, then drive a wood screw through one piece into the other. Try to drive it flush — not sticking out, not sunk too deep. Make 3 glue joints and 3 screw joints. Done looks like: 3 glued and 3 screwed practice joints, with notes on what was tricky. Should take about 1 hour.

Carpentry is 50% measuring — a cut that's off by 1/8 inch compounds into a wobbly desk. This task builds the measuring habits you'll use on every project. Practice these three techniques on scrap wood: (1) Measure twice, mark once — always double-check before marking. (2) Use a speed square or combination square to draw perfectly perpendicular cut lines. (3) Use a marking knife or sharp pencil to make thin, accurate lines (a fat pencil line can throw off your cut). Measure and mark 6 different lengths on scrap wood, then cut them and check the actual length against your mark with a tape measure. Done looks like: 6 marked-and-cut pieces with your measurements written next to each, showing how close you got. Should take about 45–60 minutes.

The circular saw is the main tool you'll use to cut desk and shelf pieces — getting comfortable with it on scrap first means your real project pieces won't be wasted. Grab 4–6 pieces of scrap 2x4 or similar lumber. Using a pencil, speed square, and measuring tape, mark a straight cut line on each piece. Then make the cuts using the circular saw, keeping the blade on the waste side of the line. Focus on: keeping the saw base flat on the wood, following the line smoothly without forcing the saw, and letting the offcut fall freely. Check each cut with your square to see how straight it was — you're aiming to get within 1/16 of an inch. Done looks like: 4–6 scrap cuts made, with notes on what was straight and what wasn't. Should take about 1–1.5 hours. Optional resource: 'How to use a circular saw' by Steve Ramsey (Woodworking for Mere Mortals) on YouTube is excellent for beginners.

A safe, organized workspace prevents accidents and makes every session faster — this is the foundation everything else builds on. Clear a dedicated area in the garage: you need a flat, stable surface to work on (a workbench or a solid table), enough room to move around a piece of wood safely, and good lighting. Set up storage for tools so nothing is left on the floor. Make a short checklist of what you have: drill, circular saw, measuring tape, square, clamps, sandpaper, safety glasses, hearing protection. If anything is missing, flag it for your parent. Done looks like: a clean, organized workspace with a written tool inventory. Should take about 30–45 minutes.

Finishing — sanding smooth and applying a coat of something — is what separates a rough cut from something that looks intentional and made. It's also a satisfying grind session. Take one of your scrap pieces and sand it progressively: start with 80-grit sandpaper to remove rough surfaces and mill marks, move to 120-grit to smooth it further, then finish with 220-grit for a silky surface. Always sand with the grain (along the length of the wood), not against it. After sanding, wipe off dust with a damp cloth and apply one coat of whatever finish you have available — wood stain, polyurethane, or even just linseed oil. See how it changes the look of the wood. Done looks like: one scrap piece sanded through all three grits and with one coat of finish applied. Should take about 45–60 minutes.

Power tools can cause serious injuries if used wrong — understanding the rules before you touch the saw means you can work confidently all summer without second-guessing yourself. Go through these core rules and write them down in your own words: (1) Always wear safety glasses and hearing protection when using power tools. (2) Never put your hand in the path of a blade. (3) Secure your workpiece with clamps — never hold it with your hand while cutting. (4) Let the tool come to a full stop before setting it down. (5) Unplug or battery-remove tools when changing blades or bits. (6) Keep your workspace clear of trip hazards. After writing them down, talk through them out loud with your parent or re-read them like you're explaining to a friend. Done looks like: a handwritten or typed list of safety rules in your own words. Should take about 45–60 minutes. Optional resource: search 'circular saw safety basics' on YouTube — any video from a woodworking channel (like Wood By Wright or Steve Ramsey) will cover this well.

This is the boss battle for week 1. A practice box (four sides, a bottom, no lid) uses every skill you've built this week — measuring, straight cuts, joinery, and finishing — in one complete object. This is your proof of concept: if you can build a solid box, you can build a desk. Here's the plan: (1) Decide on dimensions — something like 12" long x 8" wide x 6" tall. (2) Mark and cut all five pieces (4 sides + 1 bottom) from 1x6 or 1x8 board using your circular saw. (3) Assemble using glue and screws — pre-drill all pilot holes. (4) Check that the box sits flat and corners are roughly square using your square. (5) Sand all outer faces through 120-grit at minimum. (6) Apply one coat of finish if you have time. This is a real thing you made — it can hold stuff on your shelf or your desk when it's done. Done looks like: a freestanding, solid wood box with all sides attached, sanded, and sitting flat on a surface. Should take 2–3 hours — a solid single work session. Optional resource: search 'simple wood box build for beginners' on YouTube for visual reference on assembly order.

Last week your circular saw cuts curved off at the end, and that's almost always a fence problem, not a skill problem. A clamped straightedge guide turns a freehand cut into a guided one. Clamp a piece of straight scrap parallel to your cut line and run the saw base plate against it for 6–8 practice cuts on scrap. You're done when every cut stays within 1/16" of the line from start to finish. This should take about 30–45 minutes. Look up 'circular saw straightedge guide' on YouTube — there are dozens of short demos. This is the single fix that will save the most wood this week.

A cut list is the blueprint for everything you're about to cut — every part, its dimensions, how many you need, and what wood it comes from. Before you touch real lumber, you need this written down and checked twice. Look up a basic workbench or desk cut list online for reference, then write out your own: desktop panel(s), legs (how many, what length), aprons/stretchers, and any shelf pieces. Double-check each dimension against your desk design. You're done when the cut list is written, totaled, and you've confirmed you have enough lumber on hand. Takes 30–45 minutes. Searching 'how to make a cut list for furniture' will get you solid examples.

You figured out last week that measuring from different edges throws everything off — now make it automatic on real wood. Pick one face and one edge on each board as your reference, mark them with a pencil triangle (the standard carpenter's mark), and always measure from those. Practice marking and labeling 4–5 boards before you make any cuts. You're done when every board has its reference face/edge marked and you can explain why it matters without looking at notes. Takes 20–30 minutes. This habit will protect you all week.

Legs are the most forgiving real parts to start with because they're thick stock and small errors are easier to recover from than on wide panels. Using your clamped guide and your cut list, cut all four legs to final length. Mark each one with its position (front-left, front-right, etc.) immediately after cutting — never leave parts anonymous. Check each cut with a square and measure all four against each other; they must match within 1/16". You're done when all four legs are cut, labeled, and stacked. Budget about 45–60 minutes including setup. A speed square and a reliable tape are your only tools here besides the saw.

Aprons are the horizontal pieces that connect the legs and give the desk its rigidity — getting these right matters a lot for a wobble-free frame. Cut all apron and stretcher pieces per your cut list. These are typically narrower and shorter than the legs, so watch for tearout at the end of cuts (slow down the last inch). Label each piece by position (front apron, back apron, side apron, etc.) right after cutting. Check pairs against each other — both side aprons must be identical, both front/back aprons must be identical. Done when all pieces are cut, labeled, and checked as pairs. Takes about 45–60 minutes.

The desktop is the largest, most visible part of the desk — a bad cut here is the most expensive mistake of the week, so take your time. Cut the top panel(s) to rough dimension (about 1" oversized in each direction is fine; you'll trim to final size later when the base is together). Use your clamped guide, take a breath before each cut, and have someone hold the off-cut end if the panel is wide. Done when the top is cut, marked 'TOP', and set safely aside. Budget 30–45 minutes. Don't rush this one.

Fresh-cut lumber ends are rough, slightly splintered, and can cause joinery problems later if left alone. Building on what you did last week with the practice piece, sand every cut end and edge on all desk parts: legs, aprons, stretchers, and the top. Use 80-grit to knock down roughness, then 120-grit to smooth. You're not finishing the surface yet — just cleaning up the cuts. Done when every end grain face is smooth to the touch and has no splinters. Takes about 30–40 minutes for all parts. Keep parts labeled throughout — don't let them get mixed up.

This is the moment the desk becomes real. Lay every single cut part out on your workspace, check each one against the cut list, and verify dimensions with your tape measure. Every piece must be labeled, within tolerance (1/16" on length), and accounted for. If anything is missing or wrong, fix it now — it's much easier to recut one piece today than to discover the problem mid-assembly next week. Photograph the full layout when it's done; that photo is your proof and your reference. You're done when every item on the cut list has a matching physical piece and you've signed off on the inventory. Takes 30–45 minutes. This milestone means week 3 can go straight into assembly.

Before anything gets glued, you need to understand *why* the joint works — otherwise you're just following steps and you won't know when something's wrong. Research at least two methods for attaching aprons to legs: pocket-hole screws (fast, strong, beginner-friendly) and traditional mortise-and-tenon (stronger long-term, more skill required). Understand what makes a joint rack versus stay square — hint: it's about triangulation and glue surface area. You're done when you can explain in your own words why a glued joint needs clamping time and what 'racking' means mechanically. Budget about 45–60 minutes. Good starting points: The Wood Whisperer on YouTube (pocket holes episode), or search 'leg to apron joint strength' on Fine Woodworking's site.

Based on your research, decide which joinery method you're using for this desk — most beginners go pocket holes for their first build, and that's a completely legitimate choice. Once you decide, mark every single joint location on your legs and aprons with a pencil before you touch the drill: which face gets the pocket, which direction the screw runs, which leg is front-left vs. back-right. This step prevents the classic mistake of drilling a pocket on the wrong face and ruining a finished leg. You're done when every piece has clear, consistent markings and you could hand the pile to someone else and they'd know exactly what to do. Takes about 30–45 minutes. This is the kind of pre-work pros never skip.

Now execute the joinery prep on every apron and stretcher — but not the legs yet. If you're doing pocket holes, set your jig depth for your lumber thickness, clamp it consistently, and drill every pocket before moving on. If you're doing mortise-and-tenon, cut all the mortises in the legs first (the harder step comes later). The reason you do all the drilling in one session is consistency: your jig setup is calibrated right now, so don't change it mid-way. Check the first pocket against a scrap joint before committing to all pieces. You're done when every apron end has its pocket holes drilled and a test screw seats flush without splitting. Budget 60–90 minutes. Keep your drill speed moderate — rushing pocket holes causes tear-out.

This is the most important step before any glue touches wood. Assemble the full base using only clamps: legs, aprons, and stretchers all held in position as if it were finished. Set it on a flat surface and look for gaps at every joint, check that the legs all touch the ground evenly, and use a framing square to check each corner for 90 degrees. You're specifically checking whether your cuts from Week 2 were square enough to produce tight joints — if there are small gaps, now is when you figure out how to fix them (a hand plane or sanding block on the apron end works for small gaps). You're done when you've inspected every joint, noted any issues in writing, and confirmed the base looks right before anything is permanent. Takes 45–60 minutes. Don't skip this — glue sets fast and regret sets faster.

Address everything you noted in the dry-fit. Small gaps on apron ends can be cleaned up with a sanding block. A leg that's slightly proud of the apron face can be marked and hand-planed. If a joint won't pull tight with clamp pressure, figure out why — it's almost always a slightly out-of-square cut end or a twist in the wood. This step might take 20 minutes if things went well, or 90 minutes if there's real work to do — both are normal. You're done when a second dry-fit shows all joints tight and the assembly sitting square. Don't rush to glue-up just because it's 'close enough' — close enough in a base means a wobbling desk forever.

Rather than gluing the whole base at once (chaotic, stressful, and how things go wrong), build in two stages. Start with one end frame: two legs and the apron that connects them on the short side. Apply glue to both mating surfaces, spread it evenly with a small brush or scrap, clamp firmly, drive your pocket screws or insert your tenons, and then check for square immediately before the glue grabs. Use a framing square on the inside corner and a tape measure diagonally (equal diagonals = square). You're done when the end frame is assembled, square, and clamped to cure — typically 30–60 minutes of open time with most wood glues, but let it sit at least 2 hours before handling. This is the same sequencing pros use on cabinet face frames.

Repeat the same process for the opposite end frame while the first one cures. Having two independent end frames that are both confirmed square makes the final four-way assembly much more controlled — you're connecting two rigid units instead of juggling four floppy legs. Apply glue, drive fasteners, check square with both the framing square and diagonal measurement, and clamp. You're done when the second end frame is assembled and clamped, matching the first one. Budget another 45–60 minutes. Set both frames aside to cure fully — overnight if you can manage it — before you connect them with the long aprons and stretchers.

This is the big one. With both end frames cured and rigid, you now connect them with the long aprons and stretchers to close the rectangle. Lay the base on its side on a flat surface (a garage floor works), apply glue to all remaining joint surfaces, drive fasteners, and stand it upright. Immediately check all four corners with a framing square and check diagonal measurements across the top — if the diagonals aren't equal, apply clamp pressure across the longer diagonal to pull it square before the glue sets. This step requires moving with purpose: you have maybe 5–8 minutes before glue starts to grab. Have your clamps pre-set and your square within arm's reach. You're done when the base is standing, clamped, and verified square. Let it cure fully — minimum 2 hours, overnight preferred.

Once the glue is fully cured, remove all clamps and inspect every joint closely. Look for glue squeeze-out (scrape it off with a chisel before it hardens, or it'll show under finish), gaps that didn't pull tight, or any joint that feels even slightly soft when you push on it. Interior corner blocks — small triangular or square blocks glued into the inside corner of each leg-apron joint — dramatically increase racking resistance and are standard on quality furniture. Cut and glue blocks into any corner that could use reinforcement. You're done when every joint is tight, squeeze-out is cleaned up, and corner blocks are in place where needed. Budget 30–60 minutes. A little time here pays off the entire rest of the build.

The desktop goes on last, and it attaches differently than you might expect — wood expands and contracts with humidity, so you don't just screw straight down through the apron into the panel. The standard method is tabletop fasteners (also called figure-8 fasteners or Z-clips) that allow slight movement while holding the top down firmly. Alternatively, pocket screws from inside the apron at a slight angle work for this climate and wood species. Position the desktop centered on the base, clamp it in place, and drive fasteners from the inside of the apron up into the panel. You're done when the desktop is attached, doesn't shift when you push on it, and the overhang is even on all sides. Budget 45–60 minutes. Don't overtighten — snug is right.

Set the desk upright on a flat floor and do a full structural inspection. Push on each corner — no racking. Press down on each corner of the desktop — no flex or creak. Check all four legs touch the floor (if one rocks, a furniture leveler or a thin shim fixes it). Measure diagonals one final time across the top. If it's square, solid, and standing on its own, you've built a desk frame. Everything from here — sanding, finishing, hardware — is refinement. Take a photo of it standing. You earned it.

You mentioned this in your Week 3 reflection and you were right to flag it — dried glue left on wood seals the grain and shows up as a blotchy spot under any finish. Use a sharp cabinet scraper or a chisel held flat (bevel up) to pare away every dried glue spot on the base joints and around the desktop attachment points. Work at a low angle so you're shaving, not digging. You're done when you can run your hand across every joint area and feel no hard lumps, and when a swipe of mineral spirits on the wood shows no dull ghost patches. Budget about 30–45 minutes. Resource: search 'how to remove dried wood glue before finishing' on YouTube — there are several good 3-minute demos.

Before you touch sandpaper, you need a complete picture of what you're dealing with. Take a shop light or even a phone flashlight and hold it almost parallel to every surface — this 'raking light' technique reveals dents, mill marks, torn grain, and glue spots that look invisible under normal overhead lighting. Mark every problem area with a small piece of painter's tape. This step is what separates a professional finishing job from one that looks rough after the first coat goes on. Done when you've gone over every face, edge, and leg and have a taped map of spots that need attention. Takes about 20 minutes but saves you hours of regret. Resource: search 'raking light wood surface inspection' — Fine Woodworking has a good short piece on this.

With your tape map from the inspection, address any dents, small gaps at joints, or knot voids now — before you sand. Use a stainable wood filler for anything you plan to stain, or a wax fill stick for small dings on pieces you'll clear-coat. Apply slightly proud of the surface, let it cure fully per the product instructions, then skim it flat. If you skip this step and sand first, you'll sand away the filler before it's worked. Done when every marked spot is filled, cured, and flush. Budget 45–60 minutes including cure time. Resource: search 'wood filler vs wax stick finishing' to understand when to use each.

This is your material-removal pass. Start at 80 grit if you have any rough mill marks or significant saw marks left on the desktop panel, or start at 100 if the surface is already fairly smooth. Always sand with the grain — cross-grain scratches at this stage telegraph through every finish coat. Use a random-orbit sander on flat faces and a sanding block on edges and legs. After each grit, wipe with a dry cloth and check under raking light before stepping up. Done when every surface is uniformly scratched at 120 — meaning no shiny spots (mill finish) and no deeper scratches from a coarser grit remain. This will likely take 60–90 minutes. Resource: search 'how to sand wood furniture before finishing' — The Wood Whisperer has a clear grit-progression video.

Step up to 150 then 180 grit, following the same wipe-and-check process. Once you hit 180, do something that feels counterintuitive: lightly dampen the entire surface with a damp (not wet) cloth and let it dry completely. Water-based finishes and even oil can raise the wood grain and make it feel fuzzy — doing this now, then sanding lightly with 180 or 220 grit after it dries, knocks that fuzz off before your finish goes on. Done when the surface feels genuinely smooth under your palm and the raised-grain pass is complete. Budget another 45–60 minutes. Resource: search 'raising the grain before finishing wood' — it's a quick concept and changes your results significantly.

Now you pick your topcoat. Three real options: wipe-on polyurethane (forgiving, durable, good for beginners), water-based polyurethane (faster dry time, lower fumes, slightly different look), or a penetrating oil like Waterlox or Danish oil (beautiful, but less protective for a work surface). Each has real trade-offs for a desk that will take daily use. Before you commit to the whole desk, apply your chosen finish to a scrap offcut from Week 1 or the underside of an apron. Let it dry fully and evaluate the color shift and sheen. Done when you've chosen a finish, done a test patch, let it cure, and decided you're happy with the look. Budget 30 minutes of work plus dry time. Resource: search 'best finish for a wood desk — polyurethane vs oil' for a straightforward comparison.

With your finish chosen and tested, apply coat one to the entire desk — legs and base first, desktop last so you don't accidentally brush against a wet surface. Work with the grain, use thin coats (thick coats drip and take forever to cure), and maintain a wet edge so you don't get lap marks. Wipe-on poly goes on with a lint-free cloth in circular motions then finished with a grain-direction pass. Brush-on poly uses a good natural-bristle or foam brush. Done when the full desk has one coat and is hanging to cure with nothing touching the surfaces. This takes about 45–60 minutes of active work. Resource: search 'how to apply wipe-on polyurethane' or whichever finish you chose — application technique matters a lot.

Once coat one is fully dry (check the can — usually 4–8 hours for poly, longer for oil), scuff the entire surface lightly with 320-grit sandpaper or a gray scotch-brite pad. You're not removing finish — you're knocking off dust nibs and giving the next coat something to bond to. Wipe off all dust with a tack cloth, then apply coat two the same way as coat one. Done when coat two is on and curing. Budget about 30 minutes of active work per coat; the waiting is the hard part. If you see a drip or run in coat one, scrape it off flat with a razor blade before scuff-sanding — don't try to sand a run, it makes a mess.

Most desk surfaces benefit from three coats of poly or two to three coats of oil for real durability. Scuff-sand again with 320 or a scotch-brite pad, tack cloth everything off, and apply your final coat. This coat gets extra care — slow down, look for drips as you go, and don't rush. After application, leave the desk completely alone for the full cure time listed on your finish can, which is often 24–72 hours for a hard cure even if it's dry to the touch in a few hours. Done when the final coat is applied and the desk is set aside to cure undisturbed. Budget 30 minutes of active work.

After full cure, do one last raking-light inspection. Any remaining dust nibs can be buffed out with 0000 steel wool or a brown paper bag (seriously — it works). If you want a smoother, slightly softer sheen than straight poly gives, apply a very thin coat of paste wax with a cloth, let it haze, and buff it off. This is purely optional but it's the move that makes a finish feel like furniture instead of a plastic coating. Done when you're happy with the surface and have cleaned up your workspace. Budget 20–30 minutes.

Move the desk to its permanent spot. Put something on it. This is the milestone: a fully built, fully finished, fully functional desk that you designed the cut list for, cut every piece of, assembled, and finished yourself. Take a photo of it in use. If you want to go further, note one thing you'd do differently on the next build — that's how carpenters actually get better. You've gone from 'what is a reference edge' to a finished piece of furniture in four weeks. That's real.