Decking Installation Guide v20200731US
CONTENTS Important Note Expansion and Contraction Values 2-7 7 Locking Clip Installation 8-9 Breaker Board Installation 9 - 10 Stair Tread Installation 11 Bullnose Installaton 12 - 14 Decking Installation 15 - 20 Removing a Board 20 - 21 Decking Installation Guide / v20200731US 1
IMPORTANT: Read All Sections Before You Start For the most up to date information, please visit our website @ www.newtechwood.com Prior to installing any composite decking, it is recommended that you check with local building codes for any special requirements or restrictions. The diagrams and instructions outlined in this guide are for illustration purposes only and are not meant or implied to replace a licensed professional.
these areas, be careful of using conducive objects such as metal railing and chairs as static shocks might occur more often. A potential way to lower the amount of static shocks occurring is to apply Staticide (www.aclstaticide.com) on your deck or use anti-static mats before doorways. NewTechWood’s products have been tested against EN 1815 - Assessment of Static Electrical Propensity and have received values under the maximum standard of 2kV.
1”1/2 90 degree angle 1”1/2 Composite Board Joist Sister Joist DIAGRAM 1 DIAGRAM 2 DIAGRAM 3 Fasteners Continued Always use screws designated for use with composite decking material. Always test the screws on a scrap piece of board to ensure the screws do not cause the surface of the decking to mushroom or bulge around the head of the screw. If it does cause this issue, change to a different brand of screw.
Storage NewTechWood’s products always need to be stored on flat solid surfaces. Surfaces such as dirt and grass are not sufficient as they can move over time. NewTechWood products shown above put on a flat surface on joists, this is the correct way for storage. NewTechWood products shown above on an uneven surface which will make the products prone to warping and distortion. NewTechWood products shown above can be on pedestals or jacks if the surface is uneven.
Framing First, determine the decking span, that is , how far apart your joists will be. The frame needs to be completely level before installing any boards. Note: Adequate spacing in the joists is required to keep the deck boards from bending. Please review the chart below to see what spacing is required for your profile.
Maximum Decking Spans on Center-to-Center Region Profile Dimensions Residential Span Commercial Span US07, Solid Board 5.5 x 0.9 inches 16 inches 12 inches US01, Grooved Solid Board 5.5 x 0.9 inches 16 inches 12 inches 5.5 x 0.9 inches 16 inches 12 inches 5.5 x 0.9 inches 14 inches 10 inches UH07, Grooved Channeled Hollow Board 5.5 x 0.9 inches 14 inches 10 inches UH01, Grooved Channeled Square Hollow Board 5.5 x 0.
Locking Clip Installation When installing boards one full length across the deck, we recommended locking the board in the middle to allow for even expansion and contraction to take place on both ends as shown in Diagram 5. Expansion and Contraction DIAGRAM 5 The below shows the recommended installation methods using breakers boards and picture framing the decking. Locking clips should be placed as close as possible to the middle joist of each board as shown in Diagram 6A and Diagram 6B.
Locking Clips Locking Clips DIAGRAM 6B Breaker Board Installation Diagram 7 and 8 below show how framework and installation of the breaker board respectively. Diagram 7 framework uses a ladder joist installation where the user is building a frame perpendicular for the board that will be running down it. Note: The T-Clip can be used as a breaker board clip by cutting it as shown in Diagram 9.
Cut TC-2 Clip to fix breaker board Cantilever cannot be more than 15 mm Use TC-2 Clip to fix boards MG-3 Starting Clip for US33 Bullnose DIAGRAM 8 Cutting TC-2 for the breaker board DIAGRAM 9 MG-3 Starting Clip Decking Installation Guide / v20200731US 10
Stair Tread Installation Review Diagram 10 and the table below with the maximum spacing from center to center for stair tread installation. Stair treads built with NewTechWood must meet requirements by the major national building codes. Consult your local municipality for specific requirements. A minimum of four (4) stringers are required. Overhang on a stair tread should not exceed more than 5/8 inch. Note: Stair treads should only be installed using solid profiles.
Bullnose Installation Use the table on the previous page to determine the center to center spacing for the bullnose profile. A minimum of four (4) stringers are required when installing the bullnose profile. Overhang on a stair tread should not exceed more than 5/8 inch. Starting Accessory Installation: First, determine how many boards your stair is going to take to finish (with clips) and then you can start to measure where the TC-5/MG-3 (SC-25) starting clip will go.
2 Now that the TC-5/MG-3 (SC-25) starting clips are inside the underside of the bullnose, the final step is to push forward to ensure that it secured into place as shown in Diagram 13. DIAGRAM 13 3 Now take the next board and have it situated behind the bullnose profile as shown in Diagram 14. DIAGRAM 14 4 Slide in the clips into the two grooves and glide them along until they are on their respective joists and then screwing down onto the joists as shown in Diagram 15 and 16.
5 Finally, finish your last board by face fixing into the board at every joist as shown in Diagram 17. Note: Remember to pre-drill before face fixing into the board. Also face fixing must happen at a 90 degree angle and must be at least 1” 1/2 by 1” 1/2 from the ends and the width of the board. DIAGRAM 17 Diagram 18 below shows a completed staircase from the side to get a better idea of how the final installation will look.
Framing First, determine the decking span, that is, how far apart your joists will be. The frame needs to be completely level before installing any boards. Note: Adequate spacing in the joists is required to keep the deck boards from bending. Please review the chart on page 6-7 of this installation guide to see what spacing is required for your profile. Decking Installation When installing the deck, the first and last board of your project will need to use a starting accessory.
Option 1: T-Clip and TC-1 Locking Clip Installation 1 After calculating the decking span and making the frame of your deck, the first board is ready to be installed. Locking Clip (TC-1) T-Clip (TC-2) DIAGRAM 21 2 After getting all the TC-1 and TC-2 clips into position above each respective joist, begin to fasten them from above as shown in Diagram 22 and 23.
4 The final installed clips should look like Diagram 24. Note: The locking clip is in the middle of Diagram 24 to show the expansion and contraction is happening in both directions. For more information on how to install the locking clips and their placement, check page 8-9 of this installation guide. Locking Clip T Clip DIAGRAM 24 Option 2: Mini Gap Clip Installation Note: The following shows how to install the mini gap clip system.
3 Next, fix the screw down into the joist as shown in Diagram 27. DIAGRAM 27 4 After fixing all clips, push the next board into the clips as shown in Diagram 28 and 29. DIAGRAM 28 DIAGRAM 29 5 Repeat steps 1-4 until complete. 6 The final look should be like the below Diagram 30. Note: The locking clip is in the middle of Diagram 30 to show the expansion and contraction is happening in both directions.
Fascia Board Installation Installing against the width and length of decking 1 Fascia boards with a thickness of less than or equal to 25/64 inch need to be installed on 12 inches on centers to prevent warping or buckling. Fascia boards with a thickness greater than 10 mm can be installed on 16 inches on centers. All fascias need to use two screws 1” 1/2 away from the ends as shown in Diagram 31 regardless of the thickness.
2 The final finish should look like Diagram 33 below. Note: A dab of silicon can be used on the end cap or inside the holes of the board in order to secure the end caps better. DIAGRAM 32 DIAGRAM 33 Removing a Board 1 Start by unfastening all the clips from the joist on both sides of the board as shown below in Diagram 34. DIAGRAM 34 2 Next slide all clips out of the board as shown below in Diagram 35.
3 Next slide out the board as shown below in Diagram 36. DIAGRAM 36 4 After the board is removed the new board can be inserted as shown below in Diagram 37 and 38. DIAGRAM 37 5 DIAGRAM 38 After the new board is in position insert the clips through the groove and into the correct position as shown in Diagram 39. The clips should then be installed as shown in Diagram 40.
Decking Installation Guide v20200731US ©2020 Huidong Meixin Plastic Lumber Products Manufacturing Co., Ltd. NewTechWood® is a registered trademark of Huidong Meixin Plastic Lumber Products Manufacturing Co., Ltd. To obtain a copy of the most current version of this installation guide, visit us online at www.newtechwood.com.
