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it all depends on the span,u can cut down on the size of your joist by putting a mid span beam most likely an lvl. The smallest you can use safely most of the time is a 2x8.most common is probably a 2x10,but if you are spanning more than eight feet without a beam then you should look into tgi joist, they are manufactured joist to carry a certain load and the lumber yard can tell you which ones you will need when you go for a take off list. your best bet is to talk to you town building inspector before buying anything The most common wood used for joists is SPF (spruce, pine, fir)
What else can I help you with?
What size wood should be used for floor joists?
The size of wood used for floor joists typically ranges from 2x8 to 2x12 inches, depending on the span and load requirements of the floor.
What are the Types of floor joists?
There are several types of floor joists commonly used in construction, including solid sawn lumber, engineered wood joists (such as I-joists and laminated veneer lumber), and steel joists. Solid sawn lumber is traditional and widely available, while engineered wood joists offer greater strength and span capabilities with less material. Steel joists are used for commercial and industrial applications due to their high load-bearing capacity and durability. Each type has its own advantages depending on the specific requirements of a building project.
How much weight can joists hold?
That depends upon the size of the joists & grade/species of wood
What is the most common wood used in making bookcases?
Mahogany is a common type of wood used for bookcases and , Walnut is also commonly used for making bookcases
What is the most common wood material used to make a good handsaw handle?
normal wood
What type of wood is used for hardwood flooring?
The type of wood used in hardwood flooring varies. The most common type of wood used in hardwood flooring is timber. Another common but more exotic wood in hardwood flooring is bamboo.
What are the common issues to look out for when inspecting basement joists for structural integrity?
Common issues to look out for when inspecting basement joists for structural integrity include signs of water damage, rot or decay, sagging or uneven floors, cracks or splits in the wood, insect infestations, and inadequate support or spacing of the joists. It is important to address these issues promptly to prevent further damage to the structure of the building.
What is the most common wood used to build homes in Medieval Europe?
Oak.
What are the most common materials used in bridge buliding?
iron, steel, concrete, stone, wood, and composites are the most common materials used in bridge construction!
What is the most common type of wood used inside of cars?
well it is chestnut because it is a flexible wood,and is very beautiful type of wood.
What is wood used to make?
Pianos are typically made from some type of hardwood. The most common varieties used are the wood from maple or beech trees.
What kind of plants provides most of the soft wood lumber used of construction?
The most widely used soft wood for construction is pine. White pine is the most common because it is a fast grower.
