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Most workbenches are too small for the material woodworking actually comes in. This table is sized to the sheet: a full 4x8 melamine top on a triple-leg-set 2x4 frame, so plywood gets broken down, assemblies get glued up, and finishes get applied on a surface that fits the work. The melamine top is a deliberate choice, not a budget one — glue squeeze-out pops off melamine, and the factory surface is dead flat.
The plan comes in four flavors from one drawing: 30" table height or 36" counter height, rolling or fixed — only the leg lengths change, and all four cut lists ride along in the notes (this file's cut list is the 30" mobile version). Six 4" locking casters make a table this size actually usable in a one-car shop; skip them only if the table will never, ever move.
The build sequence hides a nice trick: the plywood shelf is cut to notch around the legs and then screwed down square — the FACTORY EDGES of the plywood square the frame, instead of you chasing diagonals with a tape. And take the source's warning seriously in step 6: the top 8-foot rails must fit perfectly, because the melamine sheet on top has no flex to forgive a frame that's a half-inch proud.
| Item | Qty |
|---|---|
| 2x4, 8 ft11 for the 36" counter-height versions. | 10 each |
| Plywood, 5/8" AC, 4x8 sheetThe lower shelf — and the frame-squaring jig, as it turns out. | 1 each |
| Melamine-coated particle board, 3/4", 97" x 49"The top. Melamine sheets run an inch oversize, which gives a handy 1/2" overhang all around. | 1 each |
| Casters, 4", locking, with screws and washersOmit for the fixed version — the legs just get cut longer. | 6 each |
| Self-tapping screws, #9 x 2-1/2", star drive | 70 each |
| Self-tapping screws, #8 x 1-1/2", star driveShelf and top. | 50 each |
Overall cost: $$$. Lumber prices vary by region, species, and season, so we give a band rather than a figure we would only be pretending to know.
| Part | Qty | T × W × L |
|---|---|---|
| Legs30" mobile version. Fixed 30": 29-1/4". Mobile 36": 31". Fixed 36": 35-1/4". | 6 | 1 1/2" × 3 1/2" × 25" |
| Leg bottom blockingCaster pads. Omit to gain shelf clearance and set the shelf at the leg bottoms instead. | 6 | 1 1/2" × 3 1/2" × 3 1/2" |
| Cross supports | 6 | 1 1/2" × 3 1/2" × 42" |
| Long rails | 4 | 1 1/2" × 3 1/2" × 96" |
| Upper leg fillersCut to fit YOUR frame. Fixed 30": ~18-3/4". Mobile 36": ~20-1/2". Fixed 36": ~24-3/4". | 6 | 1 1/2" × 3 1/2" × 14 1/2" |
| Lower shelfPlywoodNotched around the legs — cutouts about 3-5/8" x 3-1/2", cut 1/8" generous. | 1 | 5/8" × 48" × 96" |
| TopMelamine particle boardFull sheet, no cuts. | 1 | 3/4" × 49" × 97" |
Some parts are longer than a 8 ft board, so there is no honest board count to show here. Open the board plan to pick a longer stock length — it names every part that does not fit.
6 boards
0 boards
0 boards
Assumes 8 ft stock, a 1/8" saw kerf, and buying each part at its own width. Change the board size or kerf on the full board plan →
Screw a 3-1/2" 2x4 block to the bottom of each leg with two 2-1/2" screws — these are the caster mounting pads.
Option from the source: skip the blocks entirely and put the bottom shelf at the very bottom of the legs, which buys more clearance under the shelf.
Join the legs in pairs with the 42" cross supports, two screws per joint, making three identical H-shaped leg sets — two ends and a center.
Attach the 96" rails to the leg sets, centering the middle leg set. Check the legs are square to the long rails as you go — the 8-foot span amplifies every degree of error into visible lean.
Cut the corner and center notches out of the plywood shelf with a jigsaw so it drops around the six legs — about 3-5/8" x 3-1/2", cut 1/8" oversize so it slides in without a fight.
Then screw it down with 1-1/2" screws, USING THE PLYWOOD TO SQUARE THE FRAME: the sheet's factory corners are the truest right angles in your shop, so pull the framing to the plywood, not the other way around.
Screw the upper 2x4 cross pieces to the tops of the leg sets — the beginnings of the top frame.
Clamp the upper 96" rails in place before screwing. The source build hit the classic snag here: one leg out of square made the 8-footer 'come up short' — the fix is loosening the leg's screws, pulling it true, and re-driving.
Do not shrug this fit off. The melamine top is a rigid factory rectangle; if the frame under it isn't the same rectangle, the top rocks or overhangs unevenly and there's no trimming it back.
Cut the six filler pieces to fit your actual openings (the listed 14-1/2" is nominal) and screw them in from the inside so the fasteners don't show on the finished table.
With help, tip the table and mount the six casters to the leg blocks with their screws and washers. Lock all six before the next part.
Set the melamine sheet on top — at 97" x 49" it overhangs the frame about 1/2" all around. Fasten with a few 1-1/2" screws down through the top; countersink them slightly so nothing stands proud of the work surface. (The source builders left theirs loose, planning to bed it in silicone like a vanity top so it can be replaced when it wears — a reasonable long game for a surface that will take abuse.)
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