Mustafa & Kamal Ashraf Trading.Co
Pre Engineered Steel Building
MK has been in service for more than 30 years in Pre-Engineered Building (PEB) and its application in all industrial, commercial buildings and special products. MK has supplied and installed more than 1000 Pre-Engineerd Buildings in Oman. PEB system is popularly known and offers many advantages:
  • Strength and Durability
  • Low Investment Cost
  • Faster Completion of projects
  • Fast Modular Expandability
  • Larger Clear span at economical cost
  • Architectural Flexibility
Industrial Steel Buildings High rise Multi-storeyed buildings
Showrooms Malls & Hypermarkets
Auditorium / Theatre / Sports Hall Fuel Stations
Warehouses Cold Storages
Aircraft Hangers Special Shuttering Works
Commercial Buildings Schools & Colleges
Car Park / Railway / Bus Shelters Logistic Buildings

Basic Framing System

Building Width: the distance from outside of one sidewall girt to opposite side wall girt.

Building Length : The sum of all bays. For flush end walls, the distance between the outside flanges of end wall columns in opposite end walls is considered the building length. For bypass end walls the distance between the outside of wall girts in opposite end walls is considered the building length.

Roof Slope : The angle of the roof with respect to the horizontal. The most common roof slope is 1/10. Any practical roof slope is possible. Interior Bay Length: The distance between the center lines of columns of two adjacent interior rigid frames. Most interior bay lengths in the PEB industry are 6.0 to 8.0 m.

End Bay length : The end bay length is the distance from the outside of the outer flange of end wall columns to center line of the columns of the first interior rigid frame.

Building Height : The distance from finish floor level to the top outer point of the eave strut.

Steel Line : The plane of the out of secondary "Z" & "C" members.

Typical Purlin Spacing : Preferred Purlin Spacing is 1500 mm but may be higher or lower as required by design.

Ridge Purlin Spacing : It is 200:200 mm. 300:300 mm to accommodate optional ridge gravity ventilators. It is higher when a roof monitor is specified.

Eave Purlin Spacing : It is the remaining distance of all roof purlins spacing unless it exceeds 1500 mm / roof sheeting capacity, in which case it is divided into two spaces.

Primary Frames

Building Type Preffered Width
Multi span with one interior column

Preferred Width : 30m - 60m
Multi span with two interior columns

Preferred Width : 45m - 80m
Multi span with three interior columns

Preferred Width : 60m - 120m
Lean to

Preferred Width : 3m - 20m
Butterfly Canopy

Preferred Width : 10m - 20m

Preferred Width : 3m - 9m
Roof System

Preferred Width : 10m - 24m
Single Slope

Preferred Width : 8m - 25m
Multi Gable

Preferred Width : 30m - 80m
Bracing System
This system is required when all horizontal loads result from wind forces, seismic forces and overhead cranes on a structure must be carried to columns and to foundation

Preferred Width : 30m - 80m


A mezzanine floor consists of intermediate support columns, main beams, joist and deck.

Structures can be designed to support any type of crane systems. Crane runway beams supported on bracket and for higher capacity independent supported system is provided. Runway beams can be done in both hot rolled and welded section.

It is a light weight structure, ideal for large span roof system in the requirements of :
  • Reduction in cost
  • Ease of installation accessories

Building Fascia

The function of fascia is to conceal the roof slope of a building. Fascia can be either flush with wall sheeting or projected to enhance the architectural look of the building. Curved eave can also be used as an alternative option.