Doubling 2×8 floor joists can extend the span around 25 percent with other factors identical. As an example, this means that a single floor joist with a span of 9' would have a span of 11' 2” when doubled. You can even triple the 2×8 floor joists for an even greater span.
These hangers are bent to 45 degrees and can be installed with joist hanger nails using the same method as straight joist hangers. Angled joist hangers should be available at your local lumberyard for 2x6 and 2x10....Joist Hanger Vertical Capacity.Joist SizeMin Capacity lbs2x64002x85002x106002x12700
A rule of thumb is 1.5 times a joist's depth but in feet when spaced at 16” centers. In general, a 2×8 will span 1.5 x 8, so 12-feet.
1,200 lbs.Each 2x10 will support 1,200 lbs.
The weight that can be supported by a double or triple wood headerSpan (feet)Weight Supported (lb)2 x 2" x 6"3 x 2" x 8"61680469083990103190
Max. Live Load 60 lbs/ft2 (2873 N/m2)Maximum Span (ft - in)Nominal Size (inches)Joist Spacing Center to Center (inches)Lumber Grade2 x 81212' - 4"1610' - 8"248' - 8"
How Far Can a 2×10 Beam or Header Span? A 2×10 beam – made up of two 2x10s nailed together – can span up to 11' without support beneath a deck that is 4' wide. For a more normal-sized deck, the same beam can span 8', supporting a deck that is 8' wide. You can also triple a 2×10 beam.
The International Residential Code, on which most local building codes are based, requires that floors in non-sleeping rooms must support a minimum live load of 40 pounds per square foot, and floors in sleeping rooms must be able to handle a live load of 30 pounds per square foot.
The rule of thumb is 1″ of depth for each foot of run. EX an 8′ span should have a 2x8 joist. The same rule of thumb applies to door and window headers but you should use 4x wood.
The weight that can be supported by a double or triple wood headerSpan (feet)Weight Supported (lb)2 x 2" x 6"3 x 2" x 8"42250585061680469083990
A modern house is designed to support a floor load equivalent to 150kg per square metre (1.5kN/m2). That's a maximum, but permissible over the whole floor area.
The rule of thumb is 1″ of depth for each foot of run. EX an 8′ span should have a 2x8 joist. The same rule of thumb applies to door and window headers but you should use 4x wood.
The answer is 18 – 35 lbs.
That means the joists can support a minimum of 40 pounds per square foot live load. Though, by consulting the 50 pounds per square foot live load/10 pounds per square foot dead load table, you can see the joists' span would need to be reduced to 11 feet 11 inches to support heavier weight safely.
For example, a 2x8 joist hanger is about 6 5⁄8 inches tall. Hangers can be used with both their matching nominal joist size and the next size up—2x10 hangers are approved for use with 2x10s and 2x12s, for example.
The ledger is 10' long so every foot of ledger must be designed to carry at least 200 lbs of load.
joist hanger nails for nailing into the side of the joist (Photo 5), for double hangers, use 8d or 10d nails. For double shear single hangers (Photo 4), fasten the hanger to the joist(s) with longer 8d or 10d nails. The manufacturers agree: Never use galvanized deck screws or drywall screws to install joist hangers.
Joist hangers are better because they allow for more accurate placement of joists. They also allow for toe-nailing, plus support the underside of the joist. This makes the hanger stronger than a toe-nail. While joist hangers are an expense, the ease and increased strength make them a better choice.
In short there's no one right answer to “how much can my deck hold?” However, one rule of thumb to keep in mind while answering the question is that the answer commonly is that if a deck is properly designed, it's built to hold 50 lbs. per square foot. It's possible that it could hold much more weight than 50 lbs.
In general, most decks can withstand 100 lbs per square foot. So if a hot tub like the one in the example is under that weight, the average deck should be able to support it.
Outdoors use 16d double-dipped galvanized nails (or stainless steel when called for) for installing hangers. The manufacturers agree: Never use galvanized deck screws or drywall screws to install joist hangers. Those screws don't have the shank size and toughness to support joist loads.
Are Joist Hangers Necessary? No, joist hangers are not necessary.
In short there's no one right answer to “how much can my deck hold?” However, one rule of thumb to keep in mind while answering the question is that the answer commonly is that if a deck is properly designed, it's built to hold 50 lbs. per square foot. It's possible that it could hold much more weight than 50 lbs.
4×4 can hold up to 4,000 pounds when laying horizontally with the right support. Vertically, a 4×4 should support 4300 pounds but can hold significantly more. The amount of weight that a 4×4 can hold depends on several factors like wood grade, species, and load type.
To determine the maximum load capacity of your deck, start by calculating its total area and multiply by 50 psf. So, a 100 sqft deck would be designed to support 5000 lbs.
TOE-NAILING In contrast, toe-nailing produces a strong joint. The technique requires a pair of nails, driven at opposing 45-degree angles. It isn't suitable for all joints, as the grain of one workpiece needs to be at an angle to the other.
0:093:26Joist hanger nail gun. - YouTubeYouTube
Gorilla Contact Adhesive is a flexible, fast-setting, crystal clear glue that creates a strong, permanent bond. Being paintable and waterproof makes it great for projects both inside and out!
As performers, contortionists may of course suffer from overuse injuries, just as do other performers, including acrobats and ballet dancers, rather than specifically because of contortion. Anyone doing 3 shows a day, 7 days a week (as can happen in many circuses), is likely to get overuse injuries.