47-7/8 in. Hangs Free
Sized 1/8 in. shorter than the 48 in. sheet. Square hangs free off the edge for full-length cuts without dragging the floor.
Heavy-Duty Head
1/4 in. thick head with a 1/2 in. working surface. Five steel rivets and two roll pins lock it to the blade. No flex under the knife.
Hi-Vis Yellow Finish
Yellow thermally-fused powder coat keeps the square visible against drywall. Mark the cut, the body stands out from the sheet.
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SKU TD124
Available at trusted retailers nationwide
Direct pricing coming soon. See retailer availability below.
The Wallboard Square is the 47-7/8 in. aluminum drywall T-square in Hi-Vis yellow thermally-fused powder coat. The body is sized 1/8 in. shorter than 48 in. material so the square hangs free off the sheet edge for full-length cuts. Heavy-duty 1/4 in. head with a 1/2 in. working surface rides the knife without flexing, locked to the blade with five steel rivets and two roll pins. Yellow finish keeps the square visible against drywall when the blade rides as a cutting guide.
TD124
Pick up locally or order online from Amazon, Home Depot, Lowe’s, Walmart, Ace, Menards, or Acme Tools.
Family-owned
Same factory since 1925
Trusted retailers
Available nationwide
Pro-trusted
32,000+ verified reviews
In stock at retailers
Why pros reach for it
01
Sized 1/8 in. shorter than the 48 in. sheet. Square hangs free off the edge for full-length cuts without dragging the floor.
02
1/4 in. thick head with a 1/2 in. working surface. Five steel rivets and two roll pins lock it to the blade. No flex under the knife.
03
Yellow thermally-fused powder coat keeps the square visible against drywall. Mark the cut, the body stands out from the sheet.
A closer look
Hi-Vis yellow aluminum T-square at 47-7/8 in. Sized to hang free on a 48 in. sheet edge.
Five steel rivets and two roll pins lock the 1/4 in. head to the blade. 1/2 in. working surface, no flex.
Yellow powder coat thermally fused to the aluminum body. Resists nicks from the utility knife cut after cut.
