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Lumber leaned against a shop wall is lumber that falls over, warps against the floor, and blocks whatever's behind it. This cart holds full-length boards upright and separated, in three slotted bays, and rolls wherever you need it.
It's built entirely from 2x4s — no plywood, no sheet goods, no joinery beyond butted screws. That's deliberate: a lumber cart made from anything fancier than construction lumber is a cart you'll feel bad scratching, and this one is going to get scratched.
Size the bay spacing to your actual lumber pile before you cut anything. The dimensions here fit full sheets standing on edge in the back bay and dimensional lumber up front — adjust if your mix is different.
| Item | Qty |
|---|---|
| Construction lumber, 2x4, 10 ftLine total for all ten boards. | 10 each |
| Locking swivel casters, 5"Line total for all four — a loaded lumber cart is heavy and low-clearance casters bind on shop floor debris. | 4 each |
| 2-1/2" self-tapping star bit screws | 100 each |
| 2-1/2" pocket hole screwsOptional, for the upper tie-ins. | 16 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 |
|---|---|---|
| Bottom frame sides2x4 | 2 | 1 1/2" × 3 1/2" × 60" |
| Bottom frame ends2x4 | 2 | 1 1/2" × 3 1/2" × 30" |
| Bottom frame middles2x4Divides the bottom frame into the three storage bays. | 4 | 1 1/2" × 3 1/2" × 27" |
| Upright legs2x4Two per rack frame, three rack frames. | 6 | 1 1/2" × 3 1/2" × 60" |
| Upright rungs2x4 | 9 | 1 1/2" × 3 1/2" × 24" |
| Top tie-ins2x4Ties the three rack frames together at the top. | 4 | 1 1/2" × 3 1/2" × 24 3/4" |
Buy 12 boards at 8 ft.
12 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 the two side rails, two end pieces, and four middle dividers into a rectangular frame with three evenly spaced openings. Two screws per joint, driven with the star bit screws.
Get this frame square before moving on — every rack frame above it registers off this base, so an out-of-square bottom telegraphs up into a cart that leans.
Build three identical ladder-style frames from the upright legs and rungs, two screws per joint. These are what actually separate and support the standing lumber.
Level the bottom frame first, then stand each rack frame at 90 degrees to the base, checking plumb with a square before driving four screws per joint.
Do this one frame at a time rather than all three loosely stacked — a rack frame that's slightly out of plumb is much easier to correct before the next one is screwed in next to it.
Cut and install the four top tie-in pieces connecting the tops of the three rack frames, either with pocket screws from inside or angled star bit screws from top and bottom.
This is what stops the cart racking side to side once it's loaded and rolling — don't skip it even though the bottom frame already feels solid.
Attach the four locking casters to the underside of the bottom frame, screwing into both the frame rails and the middle dividers where possible for a wider fastening pattern.
Check that all four lock before loading the cart — a cart that rolls away while you're pulling a 10-foot board off the top rack is a hazard, not a convenience.
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