Document Overview

This technical document from DI.BI. PORTE BLINDATE Srl (Italy) version 4.6 dated February 16, 2026, provides comprehensive specifications, sectional drawings, and installation guidelines for security door frames and subframes. It covers multiple door models, frame types, glazing options, and installation solutions with emphasis on structural integrity, thermal and acoustic performance, and aesthetic integration.

Main Sections and Summaries

1. Threshold Sections and Subframe Installation

• Details vertical and horizontal threshold sections for subframe installation with variations for different flooring types.
• Standard subframe height is 2159 mm with reference door height 2100 mm.
• Threshold dimensions differ by frame material: 13 mm for steel, 16 mm for aluminum, increased by 20 mm for watertight, soundproof, and thermal break thresholds.
• Options include weatherstrip bars, drip rails, and thermal break thresholds to enhance sealing and insulation.

2. Standard Subframe "CT1" and Variants

• Standard "CT1" subframe features removable corner gussets and spreaders for installation flexibility.
• Variants include watertight/sound/thermal break thresholds with increased dimensions (+20 mm).
• Specialized "CT1" subframe designed for "884" security door with flush plaster installation and 45° angled edges.

3. Standard Subframe "CT1" with Frame and Window Sections

• Horizontal and vertical sections for door models A through H with standard frames.
• Configurations include side and top windows, fixed glazed lateral panels, and arched top windows.
• Maximum glazed area dimensions specified per model (e.g., 2000x2850 mm for model B).
• Details on door passage widths, clear view widths, impost glazed heights, and options for concealed hinges and thermal break thresholds.

4. Smaller Subframes "CT3" and "CT3.1"

• Reduced subframe solutions for narrower installations with standard and bicolour aluminum frames.
• Includes side and top window configurations.

5. Subframe Extensions and Reduced Extensions

• Subframes with extensions "CT2" and reduced extension "CT4" for specific installation needs.
• Solutions combine standard and aluminum frames with extension linings.

6. Aluminum Frame Solutions

• One-colour aluminum frames flush with the wall, with side and top windows.
• Frames with watertight, soundproof, and thermal break thresholds.
• Thermal break aluminum frames incorporating glass side and top windows.

7. Box-Shaped Frame Solutions

• Box-shaped frames with external covering profiles and extension linings.
• Variants include concealed hinges and flush with wall installation.

8. Pivot Security Door Frames

• Subframe and frame solutions for DI.BIG pivot security doors with various interior and exterior wall finishes.
• Flush with wall solutions including blind and glazed side/top windows.
• Push door assembly schemes for standard DI.BIG panels.

9. Door Opening Schemes

• Push and pull door opening configurations for right and left sides, internal and external.

Critical Specifications and Parameters

• Standard subframe height: 2159 mm; reference door height: 2100 mm.
• Threshold dimensions: 13 mm (steel), 16 mm (aluminum), increased by 20 mm for watertight/sound/thermal break thresholds.
• Rough opening and subframe width dimensions detailed per configuration.
• Removable corner gussets and spreaders facilitate installation and adjustment.
• Maximum glazed area dimensions vary by door model; clear view widths and heights specified.
• Installation recommendations include flush plastering and angled edges for specific security doors.

Installation Recommendations and Best Practices

• Use removable spreaders and gussets to ease installation and alignment.
• Ensure proper sealing with weatherstrip bars and drip rails to enhance watertightness and acoustic performance.
• Increase subframe dimensions by 20 mm when using thermal break thresholds to maintain performance.
• Adhere strictly to specified rough opening dimensions for correct fitting and security.
• Use concealed hinges where specified for improved aesthetics and security.
• Flush with wall installation is recommended for certain models to improve integration with building finishes.

Summary of Technical Drawings

The document includes detailed scaled drawings (scales 1:1 to 1:100) illustrating:

• Threshold cross-sections showing weatherstrip and drip rail placements.
• Subframe cross-sections with dimensions for rough openings, splay, and fixing points.
• Door models with side and top glazed panels, including various arched top window styles.
• Pivot door frame solutions with flush wall integration.

These drawings serve as precise guides for manufacturing, installation, and quality control.

Door and Glazed Area Specifications

• Door widths range from 700 mm to 2000 mm; heights from 2000 mm to 2700 mm depending on model.
• Maximum glazed area dimensions up to 1800 mm width x 2850 mm height.
• Top window dimensions vary by model, often calculated as (Glazed Area Width / 2) + 90 mm.
• Side windows present in some models with minimum widths of 200 mm and typical sizes around 250-300 mm.
• Glazed area dimensions vary by model, e.g., 900x2920 mm for model B, 1300x2920 mm for model E.

Subframe Types and Frame Solutions

• Standard subframe "CT1" used with standard frames, including watertight, soundproof, and thermal break thresholds.
• Subframe with extension "CT2" designed for larger or complex door assemblies.
• Smaller subframe "CT3" for narrower installations.
• Frame materials include steel and bicolour aluminum frames.

Window and Arch Schemes

• Various top window arch styles: segmental arched, stilted segmental arched, round arched, and stilted round arched.
• Each arch style includes dimensional constraints and glazing area calculations.
• Top window dimensions linked to glazed area width for proportional design.

Sectional Views and Installation Details

• Horizontal and vertical sectional drawings illustrate frame profiles, glazing bead positions, and threshold details.
• Dimensions for clear openings, rough openings, frame sizes, and splay measurements provided.
• Invisible hinges noted in some solutions.
• Fixing clips, removable spreaders, and corner gussets standard for installation.

Dimensional Parameters and Clearances

• Clear opening widths typically around 885-936 mm for 900 mm door width.
• Rough opening dimensions exceed clear openings to accommodate frames.
• Minimum clearances for glazing and side windows defined (side windows minimum width 200 mm, top windows minimum height 200 mm).
• Passage heights around 2100 mm; overall frame heights up to 2940 mm depending on model.

Recommendations and Best Practices

• Calculate top window dimensions based on glazed area width for design consistency.
• Respect minimum dimensions for side and top windows for structural integrity and aesthetics.
• Use watertight, soundproof, and thermal break thresholds for enhanced performance.
• Employ removable spreaders and gussets to facilitate installation.

Summary of Model Differences

• Model B: 900 mm wide door, various top window heights, minimal or no side windows.
• Model E: Includes side windows (minimum 200 mm width) alongside top windows, glazed areas up to 1500 mm wide.
• Models C, D, F, G, H: Variations in glazed area sizes and configurations, often with fixed lateral glazed panels.

Frame and Subframe Types

• Preframe types include reduced preframes "CT3" and "CT3.1", standard frames, and box-shaped frames with external covering.
• Materials: steel, bicolour and one-colour aluminum frames.
• Subframe features removable corner gussets and spreaders for ease of installation.
• Frame extensions include reduced and full extensions with marble and aluminum finishes.

Sectional Views and Construction Details

• Vertical and horizontal sections at scales 1:1 to 1:3 show door profiles, frame assembly, and glazing integration.
• Imposed glazed transoms with specified heights (e.g., 300 mm).
• Clear and rough opening dimensions detailed, including allowances for rubber cushions and splay.
• Watertight, soundproof, and thermal break thresholds specified for aluminum frames flush with the wall.

Installation Solutions and Recommendations

• Multiple installation solutions including internal splay, exposed wooden or marble extension linings, and aluminum extension linings.
• Minimum wall thickness and extension lining sizes specified (e.g., minimum 40 mm on three sides).
• Use silicone sealing and plastic covers for airtightness and aesthetic finish.
• Concealed hinges available in box-shaped frames for security and appearance.

Side and Top Window Integration

• Side windows with minimum widths 200-300 mm and rough opening heights detailed.
• Top windows (imposte) with specified heights (e.g., 300 mm) integrated into door assemblies.
• Clear and rough opening dimensions coordinated with door frames for structural and visual consistency.

Critical Parameters and Limitations

• Door width range: 700-2000 mm; height range: 2000-2700 mm depending on model.
• Maximum overall door and window dimensions capped at 5000x5000 mm.
• Minimum clearances for installation components such as rubber cushions, splay, and sealing materials.
• Dimensional tolerances for rough openings critical for fitting and performance.

Best Practices and Recommendations

• Select appropriate preframe and frame solutions based on wall thickness and finishing requirements.
• Use removable spreaders and gussets to facilitate installation and adjustment.
• Ensure watertight, soundproof, and thermal break thresholds for enhanced performance.
• Coordinate glazing dimensions with door frame for security and aesthetics.
• Apply silicone sealing and plastic covers to protect against environmental factors and improve finish.

Pivot Door Frame Solutions

• Door widths from 1100 mm to 1800 mm; heights from 2100 mm to 2800 mm.
• Finishing solutions include exterior wall finish with laminated panels, interior plaster/boiserie detailing, and flush with wall installations.
• Door models A through N with variations in glazed areas, side and top windows (blind or glazed).
• Push door assembly schemes for right-hand and left-hand doors with proportional panel widths.

Materials and Finishes

• Frames use aluminum with thermal breaks, polystyrene polymer insulation, and Techsound soundproofing.
• Finishing panels include "LAMINAM" for interior and exterior surfaces.
• Silicone splay used extensively for sealing and waterproofing.
• Watertight thresholds specified for aluminum frame solutions.

Assembly and Installation Notes

• Detailed panel width proportions and clear opening calculations provided.
• Project feasibility for large pivot doors (>2800 mm height) evaluated case-by-case.
• Subframes dimensioned to fit rough openings and support various wall finishes.

Summary of Key Dimensions (Example Model "A" with 900 mm Door Width)

Conclusion

This document is a comprehensive technical guide for DI.BI. security doors, covering multiple models and configurations. It emphasizes dimensional accuracy, material selection, and installation details to ensure optimal door performance, durability, and aesthetic integration. The inclusion of thermal and soundproof thresholds, glazing options, and flush with wall solutions highlights adaptability to modern architectural requirements.

Manufacturer Information

DI.BI. PORTE BLINDATE Srl, Fano (PU), Italy
Website: www.dibigroup.com