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Corner-Back |  Insta-backs®


Prest-on Corner-back fasteners eliminate wood or steel stud backup at corners and ceilings. The result is faster framing and faster, easier drywall installation.

No corner back-up studs for fully insulated outside corners.

Corner-back eliminates back-up framing members.

Corner-back fasteners eliminate the need for corner back-up studs and allow corners to be fully insulated. This means a significant reduction in thermal loss. Corner-backs also assure solid construction since the maximum load on the corner is only half the load on a regular stud. Thus, two 2" X 4" studs provide the structural performance equivalent to three 2" X 4" studs.*

*Ref. U.S. Dept. H.U.D.
Office of Policy Dev.

Eliminate tee post in partition placements

Corner-back fasteners let you locate partition members without the need for back-up studs. Drywall panels anchor securely to the structural studs. As a result, you create straighter corners. Mid-high blocking is not needed.

With Corner-back fasteners, it is no longer necessary to cut insulation for partitions abutting exterior walls.

NOTE: Corner-backs reduce energy consumption by 2% per year in an average 2,000 square foot home, or as much as 16,800 BTUs per winter day. (Independent research report available; print-out coming soon).

Reduce ceiling partition separation

Corner-backs eliminate ceiling back-up members

Corner-back fasteners easily accommodate prefabricated truss ceilings with their slight concave camber and tendency to uplift.

Corner-backs are placed 16" apart along the gypsum board and then nailed to the top plate of the vertical wall. This allows the ceiling to easily follow the contour (up to 1 1/4") of the bottom truss surface.

Also attach corner-backs to interior partitions that are perpendicular to truss members. Maintain an 18" interval between the partition corner-backs and the first row of truss attachment screws.*

*Ref. HUDAC research report.

Estimated saving for a typical 1,200 square foot single family home using
Prest-on Corner-back fasteners:
Net Material Savings $170.54
Labor Savings @ $15/hr $160.50
TOTAL $331.04

Insta-back® fasteners make drywall repair quick and easy.

With Insta-backs® you can:
  1. Eliminate the need to cut gypsum board back to the nearest stud.
  2. Make finished butt joints that are "bump free". No ridges or crowns!
  3. Reduce the number of joints to be finished, saving time and material.
  4. Install ceilings faster, easier and safer.
  5. Eliminate sagging wallboard between trusses.
  6. Make quick easy repairs because cutouts can be reattached without cutting back to the nearest stud.

Safer, Simpler Ceiling Installation

Insta-back® fasteners make ceiling safer, easier and faster to hang. In some instances, one person can position and hang a sheet of gypsum board where two people might otherwise be needed. Insta-back® makes overhead work safer because the fasteners hood the gypsum board panel edges together so they will not slip.

Insta-back® fasteners bond the tapered edges together between trusses and rafters to prevent sagging and wavy joints.

Quicker, Straighter Walls

Insta-back® pulls board 1-2 degrees for a perfect joint off the stud.

Insta-back® lets you "back-block" wallboard four foot edge to eliminate ugly ridges and crowns. Drywall screws and Insta-back® create a joint between studs as strong as a solid sheet of board. When tabs are removed, no metal is exposed to snag automatic taping machines. Insta-backs® at the bottom edge assure a solid bond between upper and lower wallboard panels. The patented lance design provides a 1 to 2 degree taper for a perfect finished joint.

Insta-backs® eliminate time-consuming measures and cutting, and reduce scrap.

Space three Insta-backs® approximately 16" apart starting about 1" from the taper and ending 10" from the plate. Screw into clips 3/4" from the board edge.

Butt second wallboard panel against the edge. Screw into the opposite side of Insta-back® fasteners. Bend tabs back and forth to snap off!

Estimated savings for a typical 1,200 square foot single family home using
Prest-on Insta-back® fasteners:
Net Material Savings $76.00
Net Labor Savings @ 10/hr $75.75
TOTAL $151.75
Copyright 2005 Prest-on Drywall Fasteners