Installation Instructions
QuickCap™ Installation:
Your installation guide for QuickCap™ decking
If two QuickCap
TM
 boards are spliced, a joining board installed at the seams will 
minimize the amount of visual end-to-end gap, Figure 3. This is done by separating the end-
to-end gapping. If splices are needed and the joining board method is not used, it is 
recommended to stagger splices by two feet or more and use QuickCap
TM
 Fasteners 3/4" to 2" 
at each side of the splice, Figure 4. QuickCap
TM
 boards expand and contract with temperature 
changes. Follow the End Gapping Chart if any splices are needed to cover the surface of your 
old deck, Figure 5. 
!
QuickCap™ End Gapping:
QuickCap™ Site Preparation:
Check the condition of your current deck to make sure it is sound. If any part of the substructure or the surface is showing decay, make repairs prior 
to installing the QuickCap
TM
 boards. Any raised or twisted boards should be fastened down with quality 3" premium deck screws, tightened until 
the deck surface is level, Figure 1. If there are any areas where two deck boards come together end to end on top of a joist, the joist should be in-
spected for structural stability (an additional joist should be added if needed). If using additional screws and joists is not successful in smoothing out 
the deck surface, sand down any raised edges using an abrasive sanding disk attached to an angle grinder, Figure 2. Existing decking must be prop-
erly side gapped to provide proper drainage. 
!
Fig. 2
Old deck       QuickCap™ deck
  (diagonal installation)
6
Fig. 1
Fig. 3
Fig. 5
UltraDeck
®
 QuickCap
TM
Fasteners on both 
ends of the splice
Fig. 4










