SPANNING REQUIREMENTS Joist Spanning for Decking
Wood or metal framing members must be spaced on center according to the chart below. Be sure that framing members are level and plumb. Trex decking must span at least three framing members. For heavy items such as hot tubs, planters, etc., consult a local building engineer or inspector for span recommendations. JOIST SPACING SPAN CHART (Center-to-Center) Residential Decks, Light Duty Docks, Residential/Day Care Playground Commercial Decks, Boardwalks and Marinas Decking Loading 4788 N/m 2 4788 N/m 2 9576 N/m 2 25 mm x 140 mm Boards 400 mm 400 mm 300 mm 33 mm x 140 mm Boards 600 mm 600 mm 400 mm
ADJUST JOIST SPANNING TO ACCOMMODATE ANGLED DECKING PATTERNS
30°
60°
90°
45°
30°
45°
90°
60°
RES = 200 mm COM = 150 mm
RES = 350 mm COM = 250 mm
RES = 300 mm COM = 200 mm
RES = 400 mm COM = 300 mm
TREX BRANDED RECOMMENDED FASTENERS If any condition occurs which is attributable to the use of non-recommended or non-approved, such condition shall not be covered under the Trex Limited Warranty. Transcend ® Enhance ® DECKING–HIDDEN FASTENERS Trex Hideaway ® Hidden Fastener See page 9 for approved fastener types based on sub-structure used X X Trex Hideaway ® Deck Plug* *Ensure to use correct Trex Hideaway plug system for designated Trex Decking Profile X X
DECKING–COMPOSITE SCREWS
Trex Hideaway ® Color Match Decking Composite Screw
X
X
TREX PRODUCT LINES
Transcend ®
Enhance ®
FASCIA
Trex Hideaway ® Fascia Plug* *Ensure to use correct Trex Hideaway plug system for designated Trex Fascia Profile
X
X
Trex Hideaway ® Color Match Fascia Composite Screw
X
X
OTHER APPROVED FASTENERS If any condition occurs which is attributable to the use of non-recommended or non-approved or non-approved, such condition shall not be covered under the Trex Limited Warranty. Transcend ® Enhance ® DECKING Cortex ® Concealed Fasteners X FastenMaster ® TrapEase 3 Ultimate Composite Deck Screw X X FASCIA Starborn ® Deckfast ® Fascia System – Epoxy Coated* and Headcote ® Stainless X X SplitStop ™ Fascia Screws X X
Fascia system screws listed above can only be used with composite fascia profiles , and cannot be used with standard thickness decking boards used as fascia. Use stainless steel screws near water applications.
FastenMaster ® , TrapEase ® 3, and Cortex ® are registered trademarks of OMG, Inc. DeckFast ® Fascia System screws are registered trademarks of Starborn Industries Inc. SplitStop™ fascia screws are a registered trademark of Titan Metal Werks, Inc. Trex recommends the use of two screws per joist. All recommended screws are designed to be installed flush with decking surface; DO NOT countersink screws. Use recommended stainless steel screws in any areas near bodies of saltwater.
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