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Trim-Tex Buttboard Drywall Backer Board, OSB Butt-Joint Backer Plank
Regular price $94.50Orders start at $399 — combine any items to reach the minimum. Learn more
Trim-Tex Buttboard Drywall Backer Board, OSB Butt-Joint Backer Plank
Trim-Tex Buttboard is an engineered OSB backer plank that eliminates butt-joint bulges in drywall installations. It pulls back the edges of the cut end of each board to create a tapered edge that finishes faster with far less joint compound. Available in 6 in. x 48 in. and 6 in. x 54 in. sizes for standard wall applications.
Key Features:
- Eliminates bulges: The engineered plank pulls back the edges of the cut end of drywall to prevent butt-joint bulges.
- Tapered edge: Creates a tapered edge at the butt joint that requires far less time and joint compound to finish.
- Easy installation: Designed for fast, straightforward installation during drywall hanging.
- Built to last: Constructed from durable, resilient engineered OSB that stands up to job-site handling.
- Pro favorite: A solution favored by professional drywall finishers for butt-joint treatment.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Trim-Tex |
| Sell unit | 1 box (6 in. x 48 in.) or 1 piece (6 in. x 54 in.) |
| Product line | Trim-Tex Buttboard Drywall Backer |
| Available sizes | 6 in. x 48 in., 6 in. x 54 in. |
| Dimensions | 6 in. wide planks in 48 in. or 54 in. lengths |
| Material | Engineered OSB plank |
| Intended use | Drywall butt-joint backer to eliminate bulges at cut ends |
| Assembly | Easy to install |
| Category | Drywall accessories |
Fit and Compatibility:
Designed for use with standard drywall butt joints where two board ends meet without taper. Sold as individual planks or boxes depending on size; pair with Trim-Tex corner bead and drywall finishing products for a complete system.
Frequently Asked Questions (FAQ):
Q: What sizes does Buttboard come in?
A: This line is offered in 6 in. x 48 in. and 6 in. x 54 in. planks, sold per box or per piece depending on size.
Q: What does it do?
A: It backs up drywall butt joints and pulls back the cut-end edges, creating a tapered edge that hides the joint with less joint compound.
Q: Is it hard to install?
A: No, it is designed for easy installation while hanging drywall.
Q: What is it made of?
A: It is a uniquely engineered OSB plank built to be durable and resilient.
Q: How many come in a pack?
A: The 6 in. x 48 in. size sells by the box and the 6 in. x 54 in. size sells per piece; exact counts are not listed in the sources.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Butt joints where a factory tapered edge is not available are the hardest spots to finish flat; a rigid backer like Buttboard pulls the cut edges inward so the seam reads like a tapered joint. Choose the 54 in. length to span wider framing or double-stud conditions. Install the backer before hanging the adjacent sheet so the edges are drawn back evenly.
Handle OSB planks with gloves and eye protection; edges and fasteners can be sharp, and planks are heavy enough to require proper lifting technique.
Order Trim-Tex Buttboard Drywall Backer today and finish butt joints flatter with less compound.
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