Industrial, Warehouse & Logistics Works

NLS Contractors delivers warehouse, logistics hub and industrial site packages in Saudi Arabia: pre-engineered steel buildings, floor slabs, yard paving, sprinklers, emergency lighting, mezzanines and prefab site facilities. Packages are priced from the BOQ by trade, with slab flatness, fire protection and loading assumptions stated.

A warehouse looks simple and is not. The structure is a pre-engineered steel frame, but the performance comes from the floor, the fire protection and the yard. A racking floor has to be flat to a measured tolerance, a sprinkler system has to match the stored commodity, and a truck yard has to carry loaded trailers every day without rutting.

The shell is usually a PEB with tapered frames, Z purlins and insulated sandwich panel roof and walls. Clear span, eave height, crane beams, mezzanines and skylights are set by the operator. Loads follow SBC 301 and the design follows AISC 360 and AISI S100. Cold stores add insulated panels, vapour barriers and refrigeration-ready services.

The slab is the part most often under-specified. Flatness for racking and narrow-aisle trucks is measured as FF and FL numbers to ASTM E1155, joints are set out to limit curling, and reinforcement follows the slab design to ACI 318. Yard and apron paving follows the road package: compacted base, asphalt or interlocking pavers, falls to gullies, and markings for traffic flow.

Services follow the use. Sprinklers to NFPA 13 are designed for the storage hazard, fire pumps to NFPA 20 serve the system, and Civil Defense accepts it under SBC 801. Lighting is high bay with emergency and central battery provision, and central battery systems follow EN 50171. Site offices, guard houses and generator rooms are prefab units that arrive before the main works.

Send the operator's layout, the structural scheme or drawings, the storage and racking data, the site city and the programme. The offer lists the slab, protection and loading assumptions it priced against.

Related services

Electrical, Lighting & ELV Installation

NLS Contractors installs LV power distribution, lighting, emergency and central battery lighting, fire alarm, structured cabling and ELV systems on Saudi projects. Work follows SBC 401, IEC 60364 and NFPA 72, with test certificates, Civil Defense inspection support and as-built drawings at handover.

Steel Structures: Fabrication & Erection

NLS Contractors takes structural steel packages in Saudi Arabia, from supply and fabrication to erection: portal frames, pre-engineered buildings, mezzanines, access platforms, solar mounting structures and roof and wall cladding. Work follows AISC 360 for design, AWS D1.1 for welding and SBC 301 for loads, with mill certificates, weld records and coating records handed over.

Prefab & Modular Site Facilities

NLS Contractors supplies and installs prefab and modular site facilities in Saudi Arabia: insulated containers and generator rooms, site offices, welfare units, guard houses and accommodation blocks. Units arrive insulated and wired for air conditioning, are placed by crane, and are connected to site power, water and drainage.

HVAC & Mechanical Works

NLS Contractors installs HVAC and mechanical packages on Saudi projects: split, VRF and packaged units, chilled water plant and piping, ductwork and ventilation, sprinkler and fire pump systems, then testing, balancing and commissioning. Work follows SBC 501, SMACNA, NFPA 13 and NFPA 20, with Civil Defense acceptance support.

Civil & Earthworks

NLS Contractors carries out civil and earthworks packages in Saudi Arabia: site preparation, excavation and compaction, foundations and slabs, reinforced concrete frames, underground utilities, boundary walls and waterproofing. Concrete follows ACI 318 and ASTM requirements, compaction follows modified Proctor testing, and test records go into the handover file.

Roads & Paving

NLS Contractors builds road and paving packages in Saudi Arabia: base and subbase, asphalt paving, interlocking pavers and kerbs, road marking, signage, traffic safety devices and car parks. Layers are compacted and tested to ASTM methods, asphalt follows the approved mix design, and the owning authority's specification governs.

Related products

Concrete Foundations & Slabs

NLS Contractors builds isolated, strip and raft foundations and ground slabs in Riyadh, Jeddah, Dammam, Khobar and across the Kingdom, with reinforcement, formwork and pours to ACI 318 and ready-mix to ASTM C94. Handover includes pour records, cube test results, rebar inspection records and as-builts.

Emergency & Central Battery Lighting

Emergency and central battery lighting installation covers central battery systems, self-contained emergency luminaires, exit signs, wiring and monitoring. Standards include EN 50171, IEC 60598-2-22, EN 1838 and NFPA 101, with duration and levels per the specification and Civil Defense. Handover includes circuit schedules, duration and function test records, Civil Defense inspection support and as-builts.

Asphalt Paving Works

NLS Contractors lays asphalt in Riyadh, Jeddah, Dammam, Khobar and across the Kingdom: prime coat, tack coat, binder course and wearing course from a hot mix plant, placed by paver and rolled. Mixes follow Marshall ASTM D6927 or Superpave, and handover includes the mix design, core results and as-builts.

Pre-Engineered Steel Buildings (PEB)

NLS Contractors supplies and erects pre-engineered steel buildings for warehouses, factories, hangars and showrooms in Riyadh, Jeddah, Dammam and Khobar. Frames are built-up tapered sections with cold-formed purlins and sheeting, designed to MBMA, AISC 360 and AISI S100 with SBC 301 loads. Handover includes anchor bolt plans, erection drawings, material certificates and as-builts.

Mezzanines & Access Platforms

NLS Contractors supplies and installs steel mezzanine floors and access platforms in warehouses, factories and plant rooms in Riyadh, Jeddah, Dammam and Khobar. Scope covers columns, beams, decking, stairs, handrails and gates, designed for live loads under SBC 301 and the actual use. Handover includes shop drawings, a calculation summary, load plaque details and as-builts.

Roof & Wall Cladding Installation

NLS Contractors installs roof and wall cladding on steel frames in Riyadh, Jeddah, Dammam and Khobar: single skin sheeting, insulated sandwich panels with PU, PIR or rockwool cores, standing seam roofs, flashings, gutters and skylights. Checks cover fire behaviour, wind uplift, water tightness and SBC 601 thermal values. Handover includes panel layouts, a fixing schedule and a water test record.

Frequently Asked Questions

What does a warehouse package include?+

The steel building and cladding, floor slab, yard paving, fire protection, lighting including emergency, mezzanines where needed, and prefab site facilities. Each is a section in the offer.

What is floor flatness and why does it matter?+

FF and FL numbers to ASTM E1155 measure how flat and level a slab is. Racking and narrow-aisle trucks need high numbers, so the slab specification and the pour method must be priced for them.

Which fire protection does a logistics hub need?+

Sprinklers designed to NFPA 13 for the stored commodity, a fire pump set to NFPA 20, detection and alarm to NFPA 72, and Civil Defense acceptance under SBC 801.

Can you quote central battery lighting for a logistics hub?+

Yes. Central battery systems to EN 50171 with emergency luminaires and exit signs are priced from the lighting schedule and the duration in the specification.