Custom Architectural Slenderwall®

Leesburg Concrete is a licensed producer of SlenderWall®, a proprietary exterior cladding wall system with superb design flexibility. Our architectural precast concrete/steel-stud building panels offer limitless combinations of architectural precast textures, colors, shapes and finishes. In addition, it is lightweight (about 30 lbs. per square foot compared to approximately 85 lbs. for traditional heavy architectural precast), economical (reduces building foundation and structure costs, plus shipping and installation costs), and perfect for both re-cladding and new construction. The SlenderWall® panel’s exterior surface is 2 inches of reinforced high-strength architectural precast concrete separated from the steel stud by ½” air space reduces thermal transfer between the materials. The inside surface is 14-16 gauge, 6-inch galvanized steel studs spaced vertically at 2-foot centers. The architectural concrete is secured to the steel-stud frame with ThermaGuard™, a proprietary connection system utilizing insulated, stainless-steel welded Nelson® anchors. SlenderWall® has been fully tested and meets the required ASTM and AAMA standards. SlenderWall® is used for new construction, re-cladding, and renovation of large, multi-story commercial buildings.

Slenderwall® Information Packet

Download our Slenderwall® Information Packet containing all the information you need to get started in evaluating your needs, including: 

  • Information about Leesburg Concrete's Slenderwall® capabilities
  • Helpful articles
  • Photos
  • And more!

Download Now

Features & Benefits

SlenderWall® provides designers with unique and limitless design flexibility and function. Additionally, SlenderWall® has several proprietary features yielding benefits that no other wall system provides, including:

  • Superb architectural design flexibility (limitless combinations of architectural precast textures, colors, shapes and finishes).
  • Superior durability.
  • Permanent components.
  • Plant-produced quality.
  • Lightweight (about 30 lbs. per square foot compared to approx. 85 lbs. for heavy architectural precast).
  • Economical (reduces building foundation and structure costs plus shipping and installation costs).
  • Makes cantilever designs practical.
  • Mounts outboard of the floor slab, yielding bonus square footage on each floor.
  • Perfect for both re-cladding and new construction.
  • Smaller cranes and fewer trailers to jockey.

Explore Slenderwall's 3D Model


Industry Focus

Commercial Construction | Architecture | Design-Build

Wall Type

Cladding | Curtainwall | Exterior Wall System | Precast Exterior Wall


Virtually unlimited design flexibility. Leesburg Concrete can provide all the textures and colors found in the Precast Concrete Institute (PCI) Guide. We have named a few below to get you started:

Architectural Brick


Capitol Granite

Carolina Granite

Colorado Granite

Buff Limestone

Desert Limestone

Indiana Limestone

And Many Other Custom Patterns.

Concrete Type Reinforced Architectural Mix designed with integral color
  • G90 Galvanized Welded
  • Wire Mesh Reinforced
Steel Frame
  • 14 & 16 guage G90 Galvanized 6" Studs
  • With Nelson® Stud Anchors
  • 1/2" air space between concrete and steel reduces thermal transfer.
  • Weighs 1/3 of Traditional Architectural Precast
  • Complete Turnkey System – Ready for insulation or drywall.
  • Install outboard of floor - Adds to the Amount of Usable Interior Space
  • Meets Seismic & Windload Requirements
  • Energy Efficient
Industry Standards PCI Plant (Precast Concrete Institute)
  • We are rated top 10% in the nation in quality control
ANSI (American National Standards Institute)
  • ANSI/ASCE 7-93 Wind Load Calculations
Design standards comply with:
  • ACI 318M
  • PCI MNL 120
  • ASTM E90 - Sound Transmission
  • ASTM E 283 - Air Infiltration
  • ASTM E 330 - Structural Performance
  • ASTM E 330 - Preload at 50% design
  • ASTM E 331 - Static Pressure Water Resistance
  • AAMA 501.1 - Dynamic Pressure Water Resistance
  • AAMA 501.4 - Interstory Differential Movement/Seismic Movement
  • AAMA 501.5 - Thermal Cycling/Condensation Evaluation: AAMA 501.5-98
  • AAMA 1503 - Thermal Transmission
  • ASTM C94 - Ready Mix Concrete
  • ASTM C31 - Standard Practice for Making and Curing Concrete Test Specimens in the Field
  • ASTM C685 - Standard Specification for Concrete Made by Volumetric Batching and Continuous Mixing
  • ATSM 94 - Ready Mix Concrete
LEED Accredited (Leadership in Energy and Environmental Design)
We meet all state and federal Building Codes
Concrete Testing Methods

Tensile | Load | Shear | Air | Unit Weight | Temperature | Slump | And much more

  • Technical Design Guides are available.
Production Volume Capable of 40 yard per hour in our state of the art manufacturing facility which includes a computer controlled mixer.
  • Specialty Manufacturing
  • High Volume
File Formats

AutoCAD (DWG, DWZ) | BMP | DXF | GIF | IGES | Inventor (IDW, IPT) | JPG or JPEG | PDF | Pro-E or Pro/Engineer (DRW,PRT,XPR) | STEP | TIFF

Thickness 2 in (Reinforced)
Interior Dimensions 14 & 16 gauge 6 inch G90 galvanized steel studs
Prequalification Guide  Essential background information on Leesburg Concrete Company and our  capabilities Download now

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