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The ADA guidelines provide specific ratios for accessibility ramp measurements that are designed to maximize both accessibility and safety. The ADA requires that all business and public use wheelchair ramps adhere to a 1:12 slope ratio, meaning that for every inch of vertical rise there must be 12 horizontal inches (one foot) of ramp. If, for example, you had a stairway with a vertical rise of 21\u2033, you would need 21\u2032 of ramp. Additionally, ADA stipulates that no ramp can run longer than 30 consecutive feet without a rest or turn platform.<\/SPAN><\/P>

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Residential ramp applications are not required to follow the ADA commercial code, but it is suggested that residential ramps adhere to a standard with a slope up to (but not more than) a 2:12 ratio, or one foot of ramp for every 2 inches of vertical rise.<\/SPAN><\/P><\/DIV><\/DIV><\/DIV>", "hasVersionedData": true, "hasArchivedData": true, "hasBranchVersionedData": true, "supportsDisconnectedEditing": false, "supportsDatumTransformation": true, "supportsReturnServiceEditsOption": true, "returnServiceEditsHaveSR": true, "supportsQueryDataElements": true, "datesInUnknownTimezone": false, "supportsRelationshipsResource": true, "syncEnabled": true, "syncCapabilities": { "supportsRegisteringExistingData": true, "supportsRegisterReplicaForServer": true, "supportsSyncDirectionControl": true, "supportsPerLayerSync": false, "supportsPerReplicaSync": true, "supportsRollbackOnFailure": false, "supportsAsync": true, "supportsAttachmentsSyncDirection": true, "supportsSyncModelNone": true, "supportsDurableUrlForSyncModelNone": false, "versionCreationRule": "none", "supportedSyncDataOptions": 8484, "supportsBiDirectionalSyncForServer": false, "advancedReplicasResourceCapabilities": { "supportsVersion": true, "supportsReturnVersion": true, "supportsReturnLastSyncDate": true }, "supportsBranchVersionReconcile": true }, "supportedExportFormats": "sqlite,filegdb,shapefile,csv,geojson", "extractChangesCapabilities": { "supportsReturnIdsOnly": true, "supportsReturnExtentOnly": false, "supportsReturnAttachments": true, "supportsLayerQueries": false, "supportsGeometry": false, "supportsFeatureReturn": true, "supportsReturnHasGeometryUpdates": true, "supportsFieldsToCompare": true, "supportsServerGens": true }, "supportsSearchOrder": true, "supportedQueryFormats": "JSON", "maxRecordCount": 2000, "maxRecordCountFactor": 1, "capabilities": "Query,Sync,Extract,ChangeTracking", "description": "The ADA guidelines provide specific ratios for accessibility ramp measurements that are designed to maximize both accessibility and safety. The ADA requires that all business and public use wheelchair ramps adhere to a 1:12 slope ratio, meaning that for every inch of vertical rise there must be 12 horizontal inches (one foot) of ramp. If, for example, you had a stairway with a vertical rise of 21\u2033, you would need 21\u2032 of ramp. 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