How do I figure out how much lumber I need for my deck?
The first step for answering “how to calculate how much decking I need” is to determine your deck’s square footage, or area, by taking the length of your deck times the width (L x W). EXAMPLE: For a deck that is 16 feet long and 12 feet wide, multiply 16 by 12. This gives you 192 square feet, your deck’s total area.
How many deck boards do I need calculator?
There are several factors that determine how many boards you’ll need to form your flooring:
- The size of your deck can be determined in either: Total square footage.
- Board size.
- Spacing between deck boards. Most composite decks call for spacers that create a consistent spacing.
- The angle of your decking.
How many boards do I need for a 10×10 deck?
For a 10×10 square deck, you would therefore need twenty-two 10′ deck boards. Dimensions for deck boards can vary depending on the look you want and the deck board type you use. However, the most common is a 5/4” thick by 6” wide deck board of any length.
How many joists do I need for a 16 foot deck?
Commonly used joist sizes are 2-by-6, 2-by-8 and 2-by-10. For example, when you space joists 16″ apart — which is standard for residential decks — a deck spanning 9 1/2′ would require 2-by-6 joists, a 13′ deck would need 2-by-8 joists and a 16′ deck calls for 2-by-10 joists.
How many deck boards do I need for a 12×12 deck?
29 deck boards
So you’ll want 29 deck boards at 12-feet long. If your deck is wide enough that it will require joints, you’ll need to convert the decking board into a square foot measurement. To get the square footage of a single deck board, first convert the width from inches to feet.
How many Trex boards do I need for a 12×12 deck?
35
Choose from 8, 12, 16 or 20 ft board lengths. Choose which board best fits the dimensions of the deck. Make sure to order one square edge board for the outer edge of your deck….Decking Materials.
| Board Length | Boards Required |
|---|---|
| 8 ft | 52 |
| 12 ft | 35 |
| 16 ft | 26 |
| 20 ft | 21 |
How much wood do I need for a 10×20 deck?
Cost to Build a Deck by Size
| Size | Pressure-treated wood Average cost per sq ft | Composite decking Average cost per sq ft |
|---|---|---|
| 8×10 | $520 | $1,120 |
| 10×10 | $650 | $1,400 |
| 10×20 | $1,300 | $2,800 |
| 12×12 | $936 | $2,016 |
How many deck blocks do I need for a 12×12 deck?
Calculating Out How Many Deck Blocks for a Floating Deck
| Deck Dimension | Square Feet of Deck | Number of Deck Blocks 12″ x12″ Supporting 2000 lbs |
|---|---|---|
| 8×8 | 64 | 4 |
| 8×10 | 80 | 4 |
| 10×10 | 100 | 4 |
| 10×12 | 120 | 6 |
Do I need to use joist hangers on a floating deck?
Are Joist Hangers Necessary? No, joist hangers are not necessary.
How many footings do I need for a 16×20 deck?
Quick Attached Deck Footing Chart
| Size of Deck | Beam Size | Number of Footings |
|---|---|---|
| 10′ x 12′ | (3) 2×8 | 2 |
| 12′ x 12′ | (2) 2×6 | 3 |
| 16′ x 16′ | (3) 2×8 | 3 |
| 20′ x 12′ | (2) 2×8 | 3 |
How far can a 2×6 decking span without support?
How Much Weight Can a 2×6 Support Horizontally? A 2×6 can support up to 50 pounds per square foot of weight without sagging with a maximum span of about 12 feet when spanning a distance horizontally, with the 2×6 standing in a vertical position. This number includes both live and dead weight.
Can you use 2×10 for deck boards?
There is certainly no problem using the 2x10s for any of the structural framing of the deck. Using 2×10 treated lumber for decking is another matter entirely.
How to determine how much lumber for a deck?
Calculate plank material for the deck much post material to order. Also include extra joist material to build your stairs, which can be built out of 2-by-12 material. Trying to estimate lumber
How to build a simple lumber deck?
Your deck plans likely call for posts to be set on each post base to be bolted to the deck framing later.
How to select lumber for a deck?
Unless you’re just looking for material inspiration,always go lumber shopping with a plan! Lists and sketches are both great.
How much lumber do I need to build a deck?
You will need six 4-by-4 or 6-by-6 pieces of lumber for the posts and four 2-by-10 pieces of lumber that are at least 10 feet long. The latter will combine to make up the two large beams to support the deck. You will also need eight 2-by-6 beams for your joists, which have to be at least 8 feet long.