Skip to main content

Supplied and installed by SteelR

The Gerda Collection

Gerda residential doors

Gerda Doors, Supplied and Installed by SteelR

SteelR supplies and installs the Gerda residential door collection: three ranges, 104 different designs (many are offered in more than one range), thirteen standard colours and woodgrains, and security rated to RC2 or RC3 under EN 1627.

Gerda has been operating since 1987, and these ranges are built at its plant in Starachowice, Poland. A Gerda door is selected from a catalogue. You pick a range for its thermal performance and locking, a design, a colour and the hardware. The door is then made to your opening in 10 mm steps, within a set range of widths and heights.

This page sets out the three ranges side by side, with every design shown on the range pages.

Gerda Thermo Premium 75 Quadro Kassel 1 front door in Dark Anthracite with Winchester woodgrain blocks, set in a white rendered house with a curved stone step
Quadro Kassel 1 in Dark Anthracite and Winchester, from the Thermo Premium 75 range.

Three ranges

Choose by thermal performance and locking

All three are made in the same widths and share the same colours, glass and hardware finishes. The number in each name is the thickness of the door leaf in millimetres.

60mm door leaf

Gerda Optima 60

The 60 mm range, and the one with the widest choice of contemporary Tempo designs plus the traditional Classic panel doors.

U-value, solid door
1.0 W/m²K
Burglary resistance
RC2 or RC3
Designs
44
75mm door leaf

Gerda Thermo Premium 75

A 75 mm leaf with a thermal break, the full Gerda ZW 2000 locking set and the largest choice of designs in the collection.

U-value, solid door
0.8 W/m²K
Burglary resistance
RC2 or RC3
Designs
71
75mm door leaf

Gerda Thermo Prime 75

U-values of 0.79 W/m²K solid and 0.9 W/m²K glazed, a choice of mortise or automatic locking, and heights up to 2400 mm in selected colours and designs.

U-value, solid door
0.79 W/m²K
Burglary resistance
RC2
Designs
63

Side by side

Gerda range specification compared

The three ranges share the same colours, glass and hardware finishes. They differ in leaf thickness, thermal performance and locking.

Optima 60

Door leaf
60 mm
U-value, solid door
1.0 W/m²K
U-value, glazed door
1.3 W/m²K
Burglary resistance class
RC2 or RC3
Locking
Gerda ZW 2000 3-bolt main lock, ZW 500 3-bolt additional lock, 2-bolt auxiliary lock, vertical bolt
Frame
Alutherm 60 aluminium
Rebate
3 sides
Hinges
Adjustable in 2 planes, 3 hinge guards
Threshold
Low aluminium
Width
840 to 1130 mm
Height
1950 to 2200 mm
Design series
Tempo, Classic, Elite 3D
Designs
44

Thermo Premium 75

Door leaf
75 mm with thermal break
U-value, solid door
0.8 W/m²K
U-value, glazed door
1.1 W/m²K
Burglary resistance class
RC2 or RC3
Locking
Gerda ZW 2000 3-bolt main lock, ZW 500 3-bolt additional lock, 2-bolt auxiliary lock, vertical bolt
Frame
Alutherm 75 aluminium
Rebate
4 sides
Hinges
Adjustable in 3 planes, 3 hinge guards
Threshold
Low aluminium with thermal break
Width
840 to 1130 mm
Height
1950 to 2200 mm
Design series
Tempo, Quadro, Air Glass, Elite 3D
Designs
71

Thermo Prime 75

Door leaf
75 mm with thermal break
U-value, solid door
0.79 W/m²K
U-value, glazed door
0.9 W/m²K
Burglary resistance class
RC2
Locking
5-point mortise lock or 3-point automatic lock
Frame
Alutherm 75 aluminium
Rebate
4 sides
Hinges
Adjustable in 3 planes, 3 hinge guards
Threshold
Low aluminium with thermal break
Width
840 to 1130 mm
Height
1950 to 2200 mm, up to 2400 mm in selected colours and designs
Design series
Tempo, Quadro, Air Glass, Elite 3D
Designs
63

Figures are taken from the UK brochure for each range. RC classes are defined in EN 1627. The RC grade (2 or 3 under EN 1627) depends on door size and design. Gerda offers RC3 as a package on solid doors, so the grade is confirmed for your chosen design at quotation. Heights exclude the 27 mm sill and any extensions, and include the low threshold. Sizes are made in 10 mm increments; the available width and height depend on the design and colour. Thermo Prime 75 doors over 2200 mm are not tested for security or weather resistance.

Two different doors

A Gerda door or a SteelR bespoke door

They are different products for different briefs, and SteelR supplies both. One is selected from a catalogue and made in set sizes. The other is drawn and built for a single opening.

The Gerda collection

  • 104 catalogue designs across five series
  • Widths 840 to 1130 mm, heights 1950 to 2200 mm in most designs
  • RC2 or RC3 under EN 1627
  • Ud from 0.79 W/m²K on a solid door
  • Thirteen standard colours and woodgrains, plus RAL
  • Insulated leaf with a metal face, made by Gerda in Poland

SteelR bespoke

  • Designed and made to measure for one opening
  • Single, double and arched doors
  • BS EN 1627 RC4 (single leaf, unglazed) as standard, with LPS 1175 SR3 and SR4 available
  • Any RAL colour and a choice of hardware finishes
  • Steel door made in the UK

Design series

104 door designs across five series

A series is a family of designs that share a style. Six designs from each are shown here.

Tempo

38 designs · all three ranges

Flat contemporary leaves with stainless or black insert strips, slim glazed panels and long bar handles.

  • Gerda Milano 8 door design, Tempo series

    Milano 8

    Ref NS1

  • Gerda Innsbruck door design, Tempo series

    Innsbruck

    Ref NS7

  • Gerda Milano 4 B door design, Tempo series

    Milano 4 B

    Ref SNUB

  • Gerda Ryga door design, Tempo series

    Ryga

    Ref ST8

  • Gerda Bergamo 2 door design, Tempo series

    Bergamo 2

    Ref SOJ

  • Gerda Aspen 2 door design, Tempo series

    Aspen 2

    Ref TN7

Quadro

43 designs · Thermo Premium 75 and Thermo Prime 75

Flush leaves divided by horizontal and vertical lines, many with square or full height glazing and contrasting colour blocks. The inside face is plain as standard.

  • Gerda Kassel 1 door design, Quadro series

    Kassel 1

    Ref KWT

  • Gerda Bamberg 1 door design, Quadro series

    Bamberg 1

    Ref KWF

  • Gerda Dorfen B door design, Quadro series

    Dorfen B

    Ref KWSB

  • Gerda Pasawa 1 door design, Quadro series

    Pasawa 1

    Ref KWA

  • Gerda Regen 5 door design, Quadro series

    Regen 5

    Ref KPM

  • Gerda Ulm 2 door design, Quadro series

    Ulm 2

    Ref KWK

Air Glass

11 designs · Thermo Premium 75 and Thermo Prime 75

Designs built around a tall glass panel set into the leaf. Air Glass doors are made at a fixed height of 2087 mm without a sill. The two Villach designs are the exception: they are made in a range of heights and need a width of 1030 to 1130 mm.

  • Gerda Salzburg door design, Air Glass series

    Salzburg

    Ref AGA

  • Gerda Linz 2 door design, Air Glass series

    Linz 2

    Ref AGC

  • Gerda Graz 3 B door design, Air Glass series

    Graz 3 B

    Ref AGGB

  • Gerda Villach door design, Air Glass series

    Villach

    Ref AGH

  • Gerda Graz 1 door design, Air Glass series

    Graz 1

    Ref AGE

  • Gerda Linz 3 door design, Air Glass series

    Linz 3

    Ref AGD

Elite 3D

6 designs · all three ranges

Panelled doors with raised decorative mouldings. The mouldings are thick aluminium profiles fixed to the leaf and finished in the leaf colour. The series includes the Hawkstone, a traditional four panel door with two glazed lights.

  • Gerda Hawkstone door design, Elite 3D series

    Hawkstone

  • Gerda Brig door design, Elite 3D series

    Brig

    Ref ELA

  • Gerda Olten door design, Elite 3D series

    Olten

    Ref ELB

  • Gerda Visp door design, Elite 3D series

    Visp

    Ref ELC

  • Gerda Trin door design, Elite 3D series

    Trin

    Ref ELD

  • Gerda Berno door design, Elite 3D series

    Berno

    Ref ELE

Classic

6 designs · Optima 60

Traditional pressed panel designs, including arched and oval panel layouts, with the same pattern on both faces as standard.

  • Gerda Werona door design, Classic series

    Werona

    Ref W91

  • Gerda Barcelona door design, Classic series

    Barcelona

    Ref W54

  • Gerda Olympia door design, Classic series

    Olympia

    Ref W23

  • Gerda Nicea 5 door design, Classic series

    Nicea 5

    Ref WJ1

  • Gerda Wenecja door design, Classic series

    Wenecja

    Ref W9N

  • Gerda Lizbona door design, Classic series

    Lizbona

    Ref W24

Every design is shown with its name on the range pages: Optima 60 designs, Thermo Premium 75 designs, Thermo Prime 75 designs.

Finishes

Colours and woodgrains

Thirteen standard finishes: five plain colours and eight woodgrains. The tallest door available depends on the colour, because some finishes are only made up to a certain height.

Gerda standard door colours with maximum door height
Colour and refMax height: Optima 60, Thermo Premium 75Max height: Thermo Prime 75
White (FSB)2200 mm2400 mm
Steel Grey (FKZ)2100 mm2100 mm
Anthracite (FKG)2200 mm2400 mm
Dark Anthracite (FKF)2200 mm2400 mm
Black (FKC)2100 mm2100 mm
Alpine Walnut (FRR)2100 mm2100 mm
Mahogany (FMA)2087 mm2087 mm
Brazilian Walnut (FRB)2100 mm2100 mm
Light Walnut (FRP)2200 mm2400 mm
Golden Oak (FDE)2200 mm2400 mm
Winchester (FDW)2200 mm2400 mm
Turner Oak (FDT)2087 mm2087 mm
Light Wenge (FEJ)2100 mm2100 mm

Also available: Black Matt, Silk Anthracite, Red, Pistachio, Light Blue, Light Green, Blue, Dark Green, Cobalt Blue, and the RAL colour range. A leaf in one colour with the frame in another can be ordered as standard. A door with a different colour inside and outside is available as an option.

Options

Glass, hardware and access

These options are common to all three ranges. Handle sets differ by range and are listed on each range page.

Glass
Clear, Matte, Reflex Graphite, Reflex Brown or Mira Star.
Insert strips
Black (RAL 9005) or brushed stainless steel.
Hardware finishes
Platinum, silver or black anodised. Brushed stainless steel is available on handrails.
Handrails
Amsterdam and Montreal pull bars in 1000, 1500, 1700 and 1800 mm lengths.
Side lights and top lights
Side lights 300 to 900 mm wide and 1950 to 2200 mm high. Top lights 840 to 2950 mm wide and 300 to 500 mm high. Both are made in 10 mm increments.
Sills
The sill sits under the frame on the outside. Four depths: 120, 150, 180 and 230 mm, with thermal compensation, finished in the door colour.
Letterplates
Platinum, silver or black anodised.
Keys
A two stage key system. Two installer keys operate the door during fitting. The first use of an owner key cancels them. Five owner keys arrive in a sealed bag with a code card.
Smart lock
A tedee smart lock with its bridge (a plug in unit that connects the lock to the internet) can be added, so the door can be locked, unlocked and checked from a phone. A keypad with PIN and fingerprint entry is also available.

Questions

Gerda doors: common questions

Are Gerda doors steel doors?

Gerda doors have an insulated leaf with a metal face over a timber inner frame, rather than a solid steel construction. Gerda describes the Optima leaf as steel, and it has an expanded graphite polystyrene core. Thermo Premium 75 uses the same core in a 75 mm leaf, and Thermo Prime 75 uses a PUR foam core. All three are made at Gerda's plant in Starachowice, Poland.

What Gerda doors does SteelR supply?

SteelR supplies and installs three Gerda residential door ranges: Optima 60, Thermo Premium 75 and Thermo Prime 75. Between them there are 104 different designs across the Tempo, Quadro, Air Glass, Elite 3D and Classic series. Many designs are offered in more than one range: Optima 60 has 44, Thermo Premium 75 has 71 and Thermo Prime 75 has 63.

Which Gerda range has the best thermal performance?

In the UK range brochures Thermo Prime 75 has the lowest U-values: 0.79 W/m²K for a solid door and 0.9 W/m²K glazed. Thermo Premium 75 is 0.8 and 1.1 W/m²K. Optima 60 is 1.0 and 1.3 W/m²K. A lower figure means less heat lost through the door.

What security rating do Gerda doors have?

Optima 60 and Thermo Premium 75 are rated RC2 or RC3 under the European burglary resistance standard EN 1627, depending on door size and design. RC3 is a package that Gerda offers on solid doors. Thermo Prime 75 is rated RC2. For a higher rating, SteelR bespoke doors are certified to BS EN 1627 RC4 (single leaf, unglazed) as standard, with LPS 1175 SR3 and SR4 available.

What is the difference between a Gerda door and a SteelR bespoke door?

A Gerda door is selected from a catalogue of designs and made in 10 mm steps within a set range of sizes, mostly 840 to 1130 mm wide and 1950 to 2200 mm high. A SteelR bespoke door is designed and made to measure for one opening, including double and arched doors, in any RAL colour and at higher security ratings.

What sizes do Gerda doors come in?

Most designs are made from 840 to 1130 mm wide and 1950 to 2200 mm high, in 10 mm increments. Classic designs are 920 to 1030 mm wide and up to 2100 mm high. Most Air Glass designs have a fixed height of 2087 mm. Thermo Prime 75 can reach 2400 mm in selected colours and designs. Side lights and top lights are available for wider or taller openings.

What colours do Gerda doors come in?

There are thirteen standard finishes: White, Steel Grey, Anthracite, Dark Anthracite, Black, Alpine Walnut, Mahogany, Brazilian Walnut, Light Walnut, Golden Oak, Winchester, Turner Oak and Light Wenge. Black Matt, Silk Anthracite, Red, Pistachio, Light Blue, Light Green, Blue, Dark Green, Cobalt Blue and the RAL colour range are also available. The inside and outside can be different colours.

Can a Gerda door have a smart lock?

Yes. A tedee smart lock with its bridge can be added to all three ranges (tedee PRO on Thermo Prime 75). It lets you lock, unlock and check the door from a phone. A keypad with PIN and fingerprint entry is also available.

How long does a Gerda door take?

Lead time depends on the range, design and colour, and is confirmed in writing with your quotation.

Gerda residential doors · Supplied and installed by SteelR

Enquire about a Gerda door

Tell us which range and design you have in mind and we will call you back to talk through sizes, colours and options. There is no obligation. Supply and installation are by SteelR.

Call us
0800 861 1450

Or request a call-back

No obligation. We respond within 24 hours, weekdays.