Our Products | PEB, Prefab & PUF

Heavy-Duty Steel Envelopes

Pre-Engineered Buildings

M R ENTERPRISE Pre-Engineered Buildings represent a cost-effective, durable structural system designed for industrial and commercial enclosures. Every framing member is optimized for weight while maintaining structural safety margins.

Primary Members: Fabricated built-up H-sections for columns, rafters, and rigid frames. We use high-tensile structural steel plates conforming to ASTM A572 Grade 50 (or equivalent IS 2062).
Secondary Members: Cold-formed Z-purlins and C-girts designed to transfer roofing loads to the primary frame. Standard galvanization layer (G90 coating) prevents early rusting.
Roofing & Side Cladding: Prepainted Galvalume (PPGL) sheets with high-yield strength. Standard thickness runs from 0.47mm to 0.50mm, featuring modern corrosion protective color finishes.

Steel columns and rafters in Pre-Engineered Building structure

Component	Standard Material specification	Yield strength (Min)	Surface Finish / Treatment
Primary Columns & Rafters	ASTM A572 Grade 50 / IS 2062 Gr E350	345 MPa	Shot-blasted (SA 2.5) & Epoxy Zinc Phosphate Primer (50-80 Microns)
Z-Purlins & C-Girts	ASTM A653 Grade 50 Class 1 / IS 5986 Gr GP340	340 MPa	Pre-Galvanized coating (Z275 / G90 coating)
Eaves Struts	IS 2062 Grade B	250 MPa	In-shop Red Oxide zinc chromate priming
Roof / Wall Cladding	Alu-Zinc alloy coated steel (AZ150) / PPGL	550 MPa	Polyester Paint topcoat (20µm) & epoxy back coat (5µm)
Anchor Bolts	IS 2062 Grade A / High Strength Gr 8.8	250-640 MPa	Black threaded finish / Galvanized threads

Modular Rapid Deployment Shelters

Prefabricated Shelters & Cabins

M R ENTERPRISE designs and supplies customizable modular pre-fabricated structures. Ideal for quick deployment, our cabins rely on a robust lightweight chassis and pre-fitted thermal walls.

PUF Insulated Shelters: Built using double-skin polyurethane panels (40mm to 100mm thickness). High insulation makes them ideal for telecom hubs, control rooms, and site cabins.
Cement Board Shelters: Heavy-duty cement-bonded particle board panels on light gauge structural steel framing. Excellent resistance to damp conditions and external fires.
Portable Bunk Houses: Fully mobile security and engineer bunk houses built on integrated steel channels with pre-fitted internal electrical wiring, lighting fixtures, and plumbing.

Prefab insulated cabin container structure manufactured by M R ENTERPRISE

PUF Insulated Site Offices

Quickly deployable site offices with 50mm double-sided color-coated PUF panels, pre-hung insulated doors, PVC slide windows, and integrated floor channels.

Cement Board labor Camps

Double-tier layouts designed with cement-particle external boards for high impact resistance, waterproof ceilings, and strong fire escape stairs.

Site Security Bunk houses

Small, portable base bunk houses built with lifting hooks, heavy base skids, internal panels, electrical switches, and aluminum windows.

High Efficiency Insulation Panels

PUF Sandwich Panels

M R ENTERPRISE PUF Panels are manufactured under continuous profiling pressure lines. The dense core of rigid Polyurethane Foam (PUF) is sandwiched between color-coated steel sheets to form a structural envelope with exceptional thermal values.

Continuous Production: Foaming chemicals are uniformly injected on automated lines to guarantee homogenous cell structures without thermal air pockets.
Tongue & Groove Joint Arrangement: Ensures flush fitting wall sections with tight tongue-and-groove profiles that act as an air seal, preventing external hot air intake.
Roof panel overlapping profile: Features a high trapezoidal crest geometry that matches roof pitches, protecting joints from direct monsoon rains and water flow.

Close-up of interlocking joints on PUF sandwich insulation panels