How To…
Measure for Products
Order Custom Products
Install New Products
Care for Your Products
How to Measure for Products
Actual vs Nominal Measurements
Be sure to measure – not all posts measure the same!
4×4 Actual fits 4″ x 4″ up to 4.6″ x 4.6″
(The aluminum caps only fit 4″ x 4″.)
6×6 Actual fits 6″ x 6″ up to 6.25″ x 6.25″
(The aluminum caps only fit 6″ x 6″.)
8×8 Actual fits 7.875″ x 7.875″ up 8.125″ x 8.125″
(The aluminum caps only fit 8″ x 8″.)
Nominal generally refers to pressure treated wood.
4×4 Nominal fits 3.5″ x 3.5″ up to 3.75″ x 3.75″
(The aluminum caps only fit 3.5″ x 3.5″.)
6×6 Nominal fits 5.5″ x 5.5″ up to 5.75″ x 5.75″
(The aluminum caps only fit 5.5″ x 5.5″.)
8×8 Nominal fits 7.375″ x 7.375″ up to 7.625″ x 7.625″
Round Post Measurements
Be sure to measure – not all posts measure the same!
To Measure for round post caps, be sure to measure all your deck or dock posts to achieve a nice fit. Take the widest diameter across the top of your deck or dock post.
Caps are made in 1/4″ increments; if your measurement falls in between sizes, it is up to you if you want to round up or down the quarter inch.
For a snugger fit when rounding down, you may need to remove a small amount of material from your post either by sanding or grinding with an angle head grinder and a rough grit of sandpaper (60) grit.
If you round up on the size, your caps may be a little loose which can be cured with sizing tape.
Applying a small amount clear caulk is also a nice finishing touch for filling gaps between the post and post cap.
How to Order Custom Products
- Send us a picture or your part. Send us a picture or drawing via email or ship an actual part to us. Have a question? Call or email – Contact Island Post Cap at 1 (800) 555-3694 or drop an email to [email protected].
- Approve a drawing. We will draw your part on a CAD program and email the drawing for your review and approval.
- Approve a sample part. After the drawing is approved, we will program our CNC machine to manufacture one part. Once a prototype is manufactured, we will email you a picture of the part for review and approval.
- Your parts are manufactured. Upon approval of the picture, we will manufacture the remainder of the parts for your order.
- Your parts are shipped. Following the completion of manufacturing, we box and ship your products to your door.
Turn your idea or weathered original part into a beautiful, new custom post cap, finial, spindle or other deck, fence, or stair part. Images above show Island Post Cap historic reproductions made from deteriorating originals.
How to Install New Products
Product installation varies across different products. We’ve included an installation guide for a number of our products. However, if you don’t see the specific product you’ve ordered from Island Post Cap and have a question about installing it, contact us at (800) 555-3694.
How to Care for Your Products
Many of our products, like glass post caps, require little to no maintenance. Other products, though, last longer and look better with occasional maintenance and care. We’ve included maintenance guides on a few products lines, but if you have questions about caring for a product you’ve ordered from Island Post Cap, contact us at (800) 555-3694.