R&D Workshop Trim-A-Slab Expansion Joint Repair

Trim-A-Slab is a replacement for rotted and old wood typically found between slabs in driveways and sidewalks. This wood was used during the slab construction, and is part of the ‘formwork’ used to define the size and shape of the slab. Once the cement had cured, it remained to accommodate movement of the slab as it is heated in summer and cooled in winter. This wood then functions as an ‘expansion joint’, but not very well.

Trim-A-Slab is made from a rubber-like material that flexes and holds itself into the gap between concrete slabs. It is immune to rot, moves with slab expansion and contraction, and is not affected by moisture. It provides a redundant barrier to weed growth, and most importantly, does not trap dirt and debris like wood and other less flexible products. It will make your driveway easier to keep clean.

Trim-A-Slab is available in four sizes, 1/2″, 3/4″, and 1-3/8″. Trim-A-Slab sizes follow THE GAP THAT YOU ARE FILLING. Trim-a-slab comes in black, cement grey, or walnut. Choose black for the lowest maintenance or an accented appearance. Choose grey to blend in. Walnut goes well in stamped or stained driveways. Please note, Walnut and Grey will show tire marks after a while, but they clean up easily with soap and water. All are guaranteed for up to 10 years for structural integrity, so whichever look you prefer, you can be sure it will last.

Trim-A-Slab is available in pre-cut rolls, which weigh less than 20 pounds each, so if you do want to install yourself, it’s easy to handle. Visit the DIY installation page for all you need to know about installing Trim-A-Slab. If you aren’t the do-it-yourself type, visit the professional installation page for a list of installers, who will take care of the whole job for you.