GS15 Minimal
Bonded ultra-slim system
/assets/system-comparison/gs15.webp
GS15 Minimal
The smallest central sightline for maximum glass and a near-frameless appearance.
/doors/sliding-doors/gs15-sliding-door
operationSlidingconstructionBonded glazingsightline15 mm interlockframe_depthconfigurationtracks2, 3 or 4flush_stackingYesflush_thresholdYeshidden_frameYescornerYespocketYesmotorisedNothresholdpanel_widthUp to 2,000 mmpanel_heightUp to 2,500 mmlengthareapanel_weightUp to 320 kgglazing26–30 mm double glazedsize_noteuvalueFrom 1.2 W/m²KacousticUp to 41 dBairClass 4 (600 Pa)waterClass 7A (300 Pa)windClass C5 (2,000 Pa)pas24Not statedreferenceSee product page for reference test configurationglass_weightlightshgcstandards
GS20 Classic
Bonded slimline system
/assets/system-comparison/gs20.jpg
GS20 Classic
A versatile 20 mm system balancing slim sightlines, larger panels and proven performance.
/doors/sliding-doors/gs20-sliding-doors
operationSlidingconstructionBonded glazingsightline20 mm interlockframe_depthconfigurationtracksUp to 4flush_stackingYesflush_thresholdYeshidden_frameYescornerYespocketYesmotorisedNothresholdpanel_width800–2,500 mmpanel_heightUp to 3,000 mmlengthareapanel_weightUp to 320 kgglazingUp to 30 mmsize_noteuvalueFrom 1.3 W/m²KacousticUp to 41 dBairClass 4 (600 Pa)waterClass 7A (300 Pa)windClass C5 (2,000 Pa)pas24YesreferenceSee product page for reference test configurationglass_weightlightshgcstandards
GS25 Frameless
Large-format bonded system
/assets/system-comparison/gs25.jpg
GS25 Frameless
Designed for ambitious large-span glazing with concealed frames and optional automation.
/doors/sliding-doors/gs25-sliding-doors
operationSlidingconstructionBonded glazingsightline25 mm interlockframe_depthconfigurationtracksUp to 4flush_stackingNoflush_thresholdYeshidden_frameYescornerYespocketYesmotorisedYesthresholdpanel_widthUp to 3,500 mmpanel_heightUp to 3,500 mmlengtharea12 m²panel_weightUp to 500 kgglazingUp to 46 mmsize_noteuvalueFrom 0.88 W/m²KacousticUp to 43 dBairClass 4waterClass E900windClass C5pas24Not statedreferenceSee product page for reference test configurationglass_weightlightshgcstandards
Aspect
Serviceable beaded system
/assets/system-comparison/aspect.webp
Aspect
A slim beaded system offering straightforward glass replacement and specification flexibility.
/doors/sliding-doors/aspect-sliding-door
operationSlidingconstructionBeaded glazingsightline15 or 25 mm interlockframe_depthconfigurationtracks2, 3 or 4flush_stackingYesflush_thresholdYeshidden_frameNocornerNopocketNomotorisedNothresholdpanel_widthUp to 2,500 mmpanel_heightUp to 2,800 mmlengthareapanel_weightUp to 280 kgglazingUp to 36 mmsize_noteuvalueDouble: from 1.3; triple: ≥ 1.0 W/m²KacousticUp to 39 dBairClass 3 / 4waterClass 7AwindClass C5 / C2pas24YesreferenceSee product page for reference test configurationglass_weightlightshgcstandards
GB49 Bifold Door
Folding
/assets/system-comparison/gb49.webp
GB49 Bifold Door
Folding
/doors/folding-doors/gb49-bifold-door
operationFoldingconstructionsightline110 mm meeting sightline; 49 mm sashframe_depthconfigurationUp to 14 sashes; 90° open cornertracksflush_stackingflush_thresholdhidden_framecornerYespocketmotorisedthresholdpanel_widthUp to 1,200 mmpanel_heightUp to 3,000 mmlengthareapanel_weightUp to 120 kgglazing25–48 mmsize_noteuvalueacousticairwaterwindpas24Yesreferenceglass_weightlightshgcstandards
GSP Pocket Door
Sliding into a wall pocket
/assets/system-comparison/gsp.webp
GSP Pocket Door
Sliding into a wall pocket
/doors/pocket-doors/gsp-pocket-door
operationSliding into a wall pocketconstructionsightline20 mm interlockframe_depthconfigurationtracksUp to 4flush_stackingflush_thresholdhidden_frameYescornerYespocketYesmotorisedthresholdTwin 165 mm; triple 230 mm; quad 300 mm structural thresholdpanel_widthUp to 2,500 mmpanel_heightUp to 3,000 mmlengthareapanel_weightUp to 320 kgglazingUp to 30 mmsize_noteuvalueFrom 1.3 W/m²KacousticUp to 41 dBairClass 4waterClass 7AwindClass C5pas24Yesreference1.23 × 1.55 m; 1 sash + 1 fixed lightglass_weightlightshgcstandards
GR49 Residential Door
Hinged; opens in or out
/assets/system-comparison/gr49.webp
GR49 Residential Door
Hinged; opens in or out
/doors/swing-doors/gr49-residential-door
operationHinged; opens in or outconstructionsightlineframe_depthconfigurationtracksflush_stackingflush_thresholdhidden_framecornerpocketmotorisedthresholdLow threshold; lower frame can be embeddedpanel_widthUp to 1,200 mmpanel_heightUp to 3,000 mmlengthareapanel_weightUp to 120 kgglazingUp to 45 mmsize_noteuvalueFrom 1.1 W/m²KacousticairClass 4waterClass 9AwindClass A3pas24Yesreference2,701 × 2,517 mm; 3-sash bifold using the same systemglass_weightlightshgcstandards
GPD80 Pivot Door
Pivot
/assets/system-comparison/gpd80.webp
GPD80 Pivot Door
Pivot
/doors/swing-doors/gpd80-pivot-door
operationPivotconstructionsightline80 mm frame; 80 mm sashframe_depthconfigurationtracksflush_stackingflush_thresholdhidden_framecornerpocketmotorisedthresholdpanel_widthUp to 2,100 mmpanel_heightUp to 3,000 mmlengthareapanel_weightUp to 160 kgglazing28–64 mmsize_noteuvalueFrom 0.77 W/m²KacousticairClass 4waterClass 5AwindClass 5C (published designation)pas24YesreferenceSecurity: 1.2 × 2.0 m; 1 sash. Glass Ug 1.0 double / 0.5 tripleglass_weightlightshgcstandards
GI29 Internal Doors
Hinged, sliding, pivot or fixed
/assets/system-comparison/gi29.webp
GI29 Internal Doors
Hinged, sliding, pivot or fixed
/doors/internal-doors/gi29-internal-doors
operationHinged, sliding, pivot or fixedconstructionsightline29 mm frame / sash / transomframe_depthconfigurationtracksflush_stackingflush_thresholdhidden_framecornerpocketmotorisedthresholdpanel_widthHinged/sliding: 1,200 mm; pivot: 2,250 mm; fixed: 2,000 mmpanel_heightHinged/pivot: 2,500 mm; sliding/fixed: 3,000 mmlengthareapanel_weightHinged/sliding: 100 kg (soft-close sliding: 80 kg); pivot: 150 kgglazing6–8 mmsize_noteuvalueNot applicable — internal systemacousticairNot applicable — internal systemwaterNot applicable — internal systemwindNot applicable — internal systempas24referenceglass_weightlightshgcstandards
GW70 Casement Window
Fixed or outward-opening casement
/assets/system-comparison/gw70.webp
GW70 Casement Window
Fixed or outward-opening casement
/windows/casement-windows/gw70-casement-window
operationFixed or outward-opening casementconstructionsightlineframe_depth70 mmconfigurationtracksflush_stackingflush_thresholdhidden_framecornerpocketmotorisedthresholdpanel_widthpanel_heightlengthareaFixed: 8 m²panel_weightglazingUp to 44 mmsize_noteOpening sizes depend on side/top hung configuration; confirm with GlidelineuvalueFrom 1.0 W/m²KacousticUp to 46 dBairClass 4waterClass E1200windCE 2400 (published designation)pas24Yesreference1.438 × 1.33 m; 1 fixed lightglass_weightlightshgcstandards
GW80 Casement Window
Fixed, side hung or top hung
/assets/system-comparison/gw80.webp
GW80 Casement Window
Fixed, side hung or top hung
/windows/casement-windows/gw80-casement-window
operationFixed, side hung or top hungconstructionsightline25 mm sashframe_depth80 mmconfigurationtracksflush_stackingflush_thresholdhidden_framecornerpocketmotorisedthresholdpanel_widthpanel_heightlengthareaFixed: 8 m²panel_weightglazingUp to 28 mmsize_noteOpening sash dimensions to be confirmed with GlidelineuvalueFrom 1.2 W/m²KacousticUp to 46 dBairClass 4waterClass E1200windCE 2400 (published designation)pas24Yesreference1.438 × 1.33 m; 1 fixed lightglass_weightlightshgcstandards
GT70 Tilt & Turn
Inward tilt and turn
/assets/system-comparison/gt70.webp
GT70 Tilt & Turn
Inward tilt and turn
/windows/tilt-turn/gt70-tilt-turn
operationInward tilt and turnconstructionsightlineframe_depthconfigurationtracksflush_stackingflush_thresholdhidden_framecornerpocketmotorisedthresholdpanel_width620–1,300 mm opening sashpanel_height700–3,500 mm opening sashlengthareaFixed: 8 m²panel_weightUp to 160 kgglazingUp to 40 mmsize_noteuvalue1.2 W/m²K double glazedacousticUp to 46 dBairClass 4waterE1650windClass C5pas24Yesreference1.23 × 1.48 m; 1 sashglass_weightlightshgcstandards
GW70 Shaped Window
Shaped fixed, side hung or top hung
/assets/system-comparison/gw70-shaped.webp
GW70 Shaped Window
Shaped fixed, side hung or top hung
/windows/shaped-windows/gw70-gable-window
operationShaped fixed, side hung or top hungconstructionsightlineframe_depth70 mmconfigurationtracksflush_stackingflush_thresholdhidden_framecornerpocketmotorisedthresholdpanel_widthpanel_heightlengthareaFixed: 8 m²panel_weightglazingUp to 44 mmsize_noteFixed: 150–3,000 mm wide/high; side hung: 350–700 × 400–1,500 mm; top hung: 400–1,200 × 350–1,500 mmuvalueFrom 1.0 W/m²KacousticUp to 46 dBairClass 4waterClass E1200windCE 2400 (published designation)pas24reference1.438 × 1.33 m; 1 fixed lightglass_weightlightshgcstandards
GLS Serving Window
Bifold, sliding or gas strut
/assets/system-comparison/gls.webp
GLS Serving Window
Bifold, sliding or gas strut
/windows/serving-windows/gls-serving-window
operationBifold, sliding or gas strutconstructionsightlineBifold: 110 mm; sliding: from 15 mm; gas: from 20 mmframe_depthconfigurationtracksflush_stackingflush_thresholdhidden_framecornerpocketmotorisedthresholdpanel_widthpanel_heightlengthareapanel_weightUp to 120 kg (published system maximum)glazing24–44 mmsize_noteLimits depend on opening type; gas strut capacity requires confirmationuvalueacousticairwaterwindpas24referenceglass_weightlightshgcstandards
Oriel Window
Projecting fixed glazing
/assets/system-comparison/oriel.webp
Oriel Window
Projecting fixed glazing
/windows/oriel-windows/oriel-window
operationProjecting fixed glazingconstructionsightline6 mm glass-to-glass jointframe_depthconfigurationOptional glass roof, frame and cilltracksflush_stackingflush_thresholdhidden_framecornerpocketmotorisedthresholdpanel_widthpanel_heightlengtharea7 m²panel_weightglazing30 mmsize_noteuvalueFrom 1.0 W/m²KacousticUp to 45 dBairClass 4waterClass E1200windCE 2400 (published designation)pas24reference1.438 × 1.33 m; 1 fixed lightglass_weightlightshgcstandards
Frameless Windows
Fixed frameless glazing
/assets/system-comparison/frameless.webp
Frameless Windows
Fixed frameless glazing
/windows/frameless-windows/frameless-window
operationFixed frameless glazingconstructionsightline0 mm frame inside / 41 mm outside; 25 mm glass jointframe_depthconfigurationtracksflush_stackingflush_thresholdhidden_framecornerpocketmotorisedthresholdpanel_widthpanel_heightlengtharea7 m²panel_weightglazing23–44 mmsize_noteuvalueDouble: from 1.2; triple: > 0.8 W/m²KacousticUp to 45 dBairClass 4waterClass E1200windCE 2400 (published designation)pas24referenceglass_weightlightshgcstandards
Integrated Balcony
Fixed safety barrier
/assets/system-comparison/balcony.webp
Integrated Balcony
Fixed safety barrier
/windows/integrated-balcony/integrated-balcony
operationFixed safety barrierconstructionsightlineframe_depthconfigurationWithin sliding track or attached to frametracksflush_stackingflush_thresholdhidden_framecornerpocketmotorisedthresholdpanel_widthUp to 2,500 mmpanel_heightlengthareapanel_weightglazing21.5 mm toughened laminatedsize_noteuvalueNot applicable — safety barrieracousticairNot applicable — safety barrierwaterNot applicable — safety barrierwindProject-specific barrier design requiredpas24referenceglass_weight53.75 kg/m²lightApproximately 85% (clear glass)shgcApproximately 0.6standardsEN 12150; EN 14449; BS 6262; ANSI Z97.1
GRL Glideline Roof Light
Flat rooflight
/assets/system-comparison/grl.webp
GRL Glideline Roof Light
Flat rooflight
/roofs/flat-roofs/grl-flat-roof
operationFlat rooflightconstructionsightline0–20 mmframe_depthconfigurationSolar control; glass-to-glass joints; self-cleaning glasstracksflush_stackingflush_thresholdhidden_framecornerpocketmotorisedthresholdpanel_widthUp to 1,800 mmpanel_heightlengthNo maximum overall length publishedareapanel_weightglazing32–50 mmsize_noteuvalueDouble: from 1.4; triple: ≥ 1.0 W/m²KacousticUp to 41 dBairClass 4waterClass 7AwindClass C5pas24Yesreferenceglass_weightlightshgcstandards
Lantern Roofs
Pitched roof lantern
/assets/system-comparison/lantern.webp
Lantern Roofs
Pitched roof lantern
/roofs/roof-lanterns/lantern-roofs
operationPitched roof lanternconstructionsightline0–20 mmframe_depthconfigurationSolar control; glass-to-glass joints; self-cleaning glasstracksflush_stackingflush_thresholdhidden_framecornerpocketmotorisedthresholdpanel_widthUp to 1,800 mmpanel_heightlengthNo maximum overall length publishedareapanel_weightglazing32–44 mmsize_noteTechnical section values shown; confirm lantern dimensions and thermal specification with GlidelineuvalueDouble: from 1.4; triple: ≥ 1.0 W/m²KacousticUp to 41 dBairClass 4waterClass 7AwindClass C5pas24Yesreferenceglass_weightlightshgcstandards
Frameless Lean-to Roof
Sloping lean-to glazing
/assets/system-comparison/lean-to.webp
Frameless Lean-to Roof
Sloping lean-to glazing
/roofs/lean-to-roofs/frameless-lean-to-roof
operationSloping lean-to glazingconstructionsightline0–20 mmframe_depthconfigurationSolar control; glass-to-glass joints; self-cleaning glasstracksflush_stackingflush_thresholdhidden_framecornerpocketmotorisedthresholdpanel_widthUp to 1,800 mmpanel_heightlengthNo maximum overall length publishedareapanel_weightglazing32–44 mmsize_noteuvalueDouble: from 1.4; triple: ≥ 1.0 W/m²KacousticUp to 41 dBairwaterwindpas24referenceglass_weightlightshgcstandards
Frameless Eaves Rooflight
Roof-to-wall glazing
/assets/system-comparison/eaves.webp
Frameless Eaves Rooflight
Roof-to-wall glazing
/roofs/eaves-roof/eaves-rooflight
operationRoof-to-wall glazingconstructionsightline0–25 mmframe_depthconfigurationSolar control; glass-to-glass joints; self-cleaning glasstracksflush_stackingflush_thresholdhidden_framecornerpocketmotorisedthresholdpanel_widthUp to 1,800 mmpanel_heightlengthNo maximum overall length publishedareapanel_weightglazing32–44 mmsize_noteuvalueDouble: from 1.4; triple: ≥ 1.0 W/m²KacousticUp to 41 dBairClass 4waterClass 7AwindClass C5pas24Yesreferenceglass_weightlightshgcstandards
All productsAll doorsSliding doorsBifold doorsPocket doorsEntrance doorsInternal doorsWindowsBalconiesRoof glazing
Design & openingoperationOpening styleconstructionGlazing methodsightlineSightline / jointframe_depthFrame depthconfigurationConfigurations & optionstracksTrack optionsflush_stackingFlush stackingflush_thresholdFlush thresholdhidden_frameConcealed perimeter framecornerOpen / frameless cornerpocketPocket configurationmotorisedMotorised optionthresholdThreshold detail
Size & glasspanel_widthPanel / sash widthpanel_heightPanel / sash heightlengthOverall lengthareaMaximum areapanel_weightPanel / sash weightglazingGlazing thicknesssize_noteSize & configuration notes
PerformanceuvalueThermal performance (W/m²K)acousticAcoustic insulationairAir permeabilitywaterWater tightnesswindWind resistancepas24PAS 24 securityreferencePublished reference test
Safety glassglass_weightGlass weightlightLight transmissionshgcSolar heat gain coefficientstandardsPublished glass standards
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Performance figures are based on the published system information and reference test configurations. Final specifications depend on size, glass and configuration.