# What size steel lintel do I need?

Measure the size of the open space between the walls where the door/window frame is fitted. Add a minimum of 150mm to each end. For example, for a structural opening or clear span of 1,800mm, the minimum lintel length required will be 1,800 + 150 + 150 = 2,100mm.

1. Measure the size of the structural opening i.e. the clear span between the masonry supports.
2. Add 150mm minimum bearing to each end.

Beside above, what is the minimum bearing for a lintel? 150mm

Regarding this, how do you calculate a lintel?

The lintel size is the height and width, and will be in inches. Multiply these dimensions to find the cross sectional area. Example: If the size note indicates the lintel to measure 8 by 16 inches, it will have a cross sectional area of 128 square inches.

When should a lintel be used?

A lintel is a structural horizontal support used to span an opening in a wall or between two vertical supports. It is frequently used over windows and doors, both of which represent vulnerable points in a building’s structure. Lintels are generally used for load-bearing purposes, but they can also be decorative.

### How far can a steel lintel span?

Lintel load span definitions As standard our steel lintels increase in length by 150mm, the two values represent the length of the lintel that the values in that column relate to. If it is 600 | 1200 it means the load span details can be applied to any lintel between 600mm and 1200mm.

### How thick should a lintel be?

The steel for lintels, as a minimum, should comply with ASTM A 36. Steel angle lintels should be at least 1/4 in. (6 mm) thick with a horizontal leg of at least 3 1/2 in. (90 mm) for use with nominal 4 in.

### How do you fit a metal lintel?

Steel Lintels should be installed with a minimum end bearing of 150mm, bedded on mortar and levelled along its length and across its width. The masonry above the lintel should be built in accordance with BS EN 1996-2:2006.

### How do you calculate steel beam size?

Measure the distance in inches that you need the steel beam to fill. Write this figure down on a sheet of paper as your clear span for the beam. Measure the length in inches of the floor joist that the I-beam must support. Divide that number by two.

### How do I choose a lintel?

CHOOSE THE CORRECT LINTEL: STEP 1, STEP 2 and STEP 3 STEP 1: KNOW YOUR WALL CONSTRUCTION! Below are the 6 Main Types. CAVITY WALL. STEP 2: KNOW YOUR LENGTH! How wide is the structural opening? STEP 3: KNOW YOUR LOAD! Finally you need to know the load which the Lintel will support.

### What is the difference between a lintel and RSJ?

A lintel will be far easier as it is designed to support a cavity wall, using an RSJ will be daft as it would sit under the bricks and you’d have to hide it on the outside.

### Are lintels necessary?

Do I need a lintel? Lintels are required for all openings over timber frames greater than 600mm in width, & for all openings over steel frames greater than 900mm.

### What’s the longest Catnic lintel?

Standard lengths are available in increments of 150mm at lengths up to 3000mm, 300mm at lengths from 3000mm – 4800mm (including 4575 but excluding 4500mm).

### What is a door lintel?

A lintel or lintol is a structural horizontal block that spans the space or opening between two vertical supports. It can be a decorative architectural element, or a combined ornamented structural item. It is often found over portals, doors, windows and fireplaces.

### What is a Catnic lintel?

Lintels. Catnic has pioneered the steel lintel for five generations, our products are manufactured with a unique duplex corrosion protection system, an integral plaster key and built-in damp proof course with continuous insulation making them the most unique lintel on the market.

### What is lintel height?

the top sill of the window opening is at a height less than 24 inches (610 mm) above the finished floor; It is usually advised to keep the lintel level of doors and windows at the same height. The lintel level is mostly more than 2.1m from floor level. It is in between 2m to 2.4m.

### How do you make a lintel beam?

The steps of RCC lintel design (single span or continuous with a few openings) are same as the design of a simple beam. The lintel width is equal to the wall thickness. Consider a suitable depth of the lintel. Choose the effective span of the lintel ( consider reasonable end bearings and effective depth).

### Why do we use lintels?

A lintel is one type of beam which used to support the above wall when openings like doors, windows etc. are necessary to provide a building structure. The main function of the lintel is to take loads coming from above wall and transfer its load to the side walls.