diff --git a/packages/marimekko/src/Bar.tsx b/packages/marimekko/src/Bar.tsx
index 0cd36af0f..9d420b2ec 100644
--- a/packages/marimekko/src/Bar.tsx
+++ b/packages/marimekko/src/Bar.tsx
@@ -1,13 +1,11 @@
 import React, { createElement, MouseEvent } from 'react'
-import { animated, SpringValues } from 'react-spring'
+import { animated, SpringValues, to } from 'react-spring'
 import { useTooltip } from '@nivo/tooltip'
-import { DimensionDatum } from './types'
+import { BarDatum } from './types'
 import { BarTooltip } from './BarTooltip'
 
 interface BarProps<RawDatum> {
-    datum: DimensionDatum<RawDatum>
-    borderWidth: number
-    borderColor: string
+    bar: BarDatum<RawDatum>
     animatedProps: SpringValues<{
         x: number
         y: number
@@ -19,12 +17,12 @@ interface BarProps<RawDatum> {
     }>
 }
 
-export const Bar = <RawDatum,>({ datum, borderWidth, animatedProps }: BarProps<RawDatum>) => {
+export const Bar = <RawDatum,>({ bar, animatedProps }: BarProps<RawDatum>) => {
     const { showTooltipFromEvent, hideTooltip } = useTooltip()
 
     const handle = (event: MouseEvent) => {
         showTooltipFromEvent(
-            createElement<{ datum: DimensionDatum<RawDatum> }>(BarTooltip, { datum }),
+            createElement<{ bar: BarDatum<RawDatum> }>(BarTooltip, { bar }),
             event
         )
     }
@@ -33,11 +31,11 @@ export const Bar = <RawDatum,>({ datum, borderWidth, animatedProps }: BarProps<R
         <animated.rect
             x={animatedProps.x}
             y={animatedProps.y}
-            width={animatedProps.width}
-            height={animatedProps.height}
+            width={to(animatedProps.width, value => Math.max(value, 0))}
+            height={to(animatedProps.height, value => Math.max(value, 0))}
             fill={animatedProps.color}
             stroke={animatedProps.borderColor}
-            strokeWidth={borderWidth}
+            strokeWidth={bar.borderWidth}
             onMouseEnter={handle}
             onMouseMove={handle}
             onMouseLeave={hideTooltip}
diff --git a/packages/marimekko/src/BarTooltip.tsx b/packages/marimekko/src/BarTooltip.tsx
index 153041c15..9a6da368b 100644
--- a/packages/marimekko/src/BarTooltip.tsx
+++ b/packages/marimekko/src/BarTooltip.tsx
@@ -1,12 +1,12 @@
 import React from 'react'
 import { BasicTooltip } from '@nivo/tooltip'
-import { DimensionDatum } from './types'
+import { BarDatum } from './types'
 
-export const BarTooltip = <RawDatum,>({ datum }: { datum: DimensionDatum<RawDatum> }) => (
+export const BarTooltip = <RawDatum,>({ bar }: { bar: BarDatum<RawDatum> }) => (
     <BasicTooltip
-        id={`${datum.datum.id} - ${datum.id}`}
-        value={datum.value}
+        id={`${bar.datum.id} - ${bar.id}`}
+        value={bar.value}
         enableChip={true}
-        color={datum.color}
+        color={bar.color}
     />
 )
diff --git a/packages/marimekko/src/Bars.tsx b/packages/marimekko/src/Bars.tsx
index 7cab5fc89..d0bb6303e 100644
--- a/packages/marimekko/src/Bars.tsx
+++ b/packages/marimekko/src/Bars.tsx
@@ -1,43 +1,15 @@
-import React, { useMemo } from 'react'
+import React from 'react'
 import { useTransition, config } from 'react-spring'
-// @ts-ignore
-import { useTheme } from '@nivo/core'
-import { InheritedColorConfig, useInheritedColor } from '@nivo/colors'
-import { ComputedDatum, DimensionDatum } from './types'
+import { BarDatum } from './types'
 import { Bar } from './Bar'
 
 interface BarsProps<RawDatum> {
-    data: ComputedDatum<RawDatum>[]
-    borderWidth: number
-    borderColor: InheritedColorConfig<DimensionDatum<RawDatum>>
+    bars: BarDatum<RawDatum>[]
 }
 
-interface BarData<RawDatum> extends DimensionDatum<RawDatum> {
-    key: string
-    borderColor: string
-}
-
-export const Bars = <RawDatum,>({ data, borderWidth, borderColor }: BarsProps<RawDatum>) => {
-    const theme = useTheme()
-    const getBorderColor = useInheritedColor<DimensionDatum<RawDatum>>(borderColor, theme)
-
-    const allBars = useMemo(() => {
-        const all: BarData<RawDatum>[] = []
-        data.forEach(datum => {
-            datum.dimensions.forEach(dimension => {
-                all.push({
-                    key: `${datum.id}-${dimension.id}`,
-                    ...dimension,
-                    borderColor: getBorderColor(dimension),
-                })
-            })
-        })
-
-        return all
-    }, [data, borderWidth, getBorderColor])
-
+export const Bars = <RawDatum,>({ bars }: BarsProps<RawDatum>) => {
     const transition = useTransition<
-        BarData<RawDatum>,
+        BarDatum<RawDatum>,
         {
             x: number
             y: number
@@ -47,7 +19,7 @@ export const Bars = <RawDatum,>({ data, borderWidth, borderColor }: BarsProps<Ra
             opacity: number
             borderColor: string
         }
-    >(allBars, {
+    >(bars, {
         key: bar => bar.key,
         initial: bar => ({
             x: bar.x,
@@ -100,15 +72,7 @@ export const Bars = <RawDatum,>({ data, borderWidth, borderColor }: BarsProps<Ra
     return (
         <>
             {transition((style, bar) => {
-                return (
-                    <Bar<RawDatum>
-                        key={bar.key}
-                        datum={bar}
-                        borderWidth={borderWidth}
-                        borderColor={bar.borderColor}
-                        animatedProps={style}
-                    />
-                )
+                return <Bar<RawDatum> key={bar.key} bar={bar} animatedProps={style} />
             })}
         </>
     )
diff --git a/packages/marimekko/src/Marimekko.tsx b/packages/marimekko/src/Marimekko.tsx
index ffea4682d..90b81892b 100644
--- a/packages/marimekko/src/Marimekko.tsx
+++ b/packages/marimekko/src/Marimekko.tsx
@@ -3,7 +3,7 @@ import { Container, SvgWrapper, useDimensions } from '@nivo/core'
 import { InheritedColorConfig, OrdinalColorScaleConfig } from '@nivo/colors'
 import { SvgProps, LayerId, DimensionDatum } from './types'
 import { defaultProps } from './props'
-import { useMarimekko } from './hooks'
+import { useMarimekko, useLayerContext } from './hooks'
 import { Bars } from './Bars'
 
 const InnerMarimekko = <RawDatum,>({
@@ -29,13 +29,15 @@ const InnerMarimekko = <RawDatum,>({
         partialMargin
     )
 
-    const { computedData } = useMarimekko<RawDatum>({
+    const { computedData, bars } = useMarimekko<RawDatum>({
         data,
         id,
         value,
-        colors,
         dimensions,
         layout,
+        colors,
+        borderColor,
+        borderWidth,
         width: innerWidth,
         height: innerHeight,
     })
@@ -47,16 +49,12 @@ const InnerMarimekko = <RawDatum,>({
         legends: null,
     }
 
-    layerById.bars = (
-        <Bars<RawDatum>
-            key="bars"
-            data={computedData}
-            borderWidth={borderWidth}
-            borderColor={borderColor}
-        />
-    )
+    layerById.bars = <Bars<RawDatum> key="bars" bars={bars} />
 
-    const layerContext: any = {}
+    const layerContext = useLayerContext<RawDatum>({
+        data: computedData,
+        bars,
+    })
 
     return (
         <SvgWrapper
diff --git a/packages/marimekko/src/hooks.ts b/packages/marimekko/src/hooks.ts
index 355c0b59d..6cf20ba02 100644
--- a/packages/marimekko/src/hooks.ts
+++ b/packages/marimekko/src/hooks.ts
@@ -2,6 +2,9 @@ import { useMemo } from 'react'
 import { get } from 'lodash'
 import { stack as d3Stack, Stack, stackOffsetDiverging, Series } from 'd3-shape'
 import { ScaleLinear, scaleLinear } from 'd3-scale'
+// @ts-ignore
+import { useTheme } from '@nivo/core'
+import { InheritedColorConfig, useInheritedColor, useOrdinalColorScale } from '@nivo/colors'
 import {
     NormalizedDatum,
     ComputedDatum,
@@ -10,8 +13,9 @@ import {
     Layout,
     DimensionDatum,
     CommonProps,
+    CustomLayerProps,
+    BarDatum,
 } from './types'
-import { useOrdinalColorScale } from '@nivo/colors'
 
 // d3 stack does not support defining `.keys()` using
 // a mix of keys and custom value accessors, so we're
@@ -212,6 +216,31 @@ export const useComputedData = <RawDatum>({
     return computedData
 }
 
+export const useBars = <RawDatum>(
+    data: ComputedDatum<RawDatum>[],
+    borderColor: InheritedColorConfig<DimensionDatum<RawDatum>>,
+    borderWidth: number
+) => {
+    const theme = useTheme()
+    const getBorderColor = useInheritedColor<DimensionDatum<RawDatum>>(borderColor, theme)
+
+    return useMemo(() => {
+        const all: BarDatum<RawDatum>[] = []
+        data.forEach(datum => {
+            datum.dimensions.forEach(dimension => {
+                all.push({
+                    key: `${datum.id}-${dimension.id}`,
+                    ...dimension,
+                    borderColor: getBorderColor(dimension),
+                    borderWidth,
+                })
+            })
+        })
+
+        return all
+    }, [data, borderWidth, getBorderColor])
+}
+
 export const useMarimekko = <RawDatum>({
     data,
     id,
@@ -219,6 +248,8 @@ export const useMarimekko = <RawDatum>({
     dimensions: rawDimensions,
     layout,
     colors,
+    borderColor,
+    borderWidth,
     width,
     height,
 }: {
@@ -228,6 +259,8 @@ export const useMarimekko = <RawDatum>({
     dimensions: DataProps<RawDatum>['dimensions']
     layout: Layout
     colors: CommonProps<RawDatum>['colors']
+    borderColor: InheritedColorConfig<DimensionDatum<RawDatum>>
+    borderWidth: number
     width: number
     height: number
 }) => {
@@ -246,8 +279,25 @@ export const useMarimekko = <RawDatum>({
         colors,
         layout,
     })
+    const bars = useBars<RawDatum>(computedData, borderColor, borderWidth)
 
     return {
         computedData,
+        bars,
     }
 }
+
+export const useLayerContext = <RawDatum>({
+    data,
+    bars,
+}: {
+    data: ComputedDatum<RawDatum>[]
+    bars: BarDatum<RawDatum>[]
+}): CustomLayerProps<RawDatum> =>
+    useMemo(
+        () => ({
+            data,
+            bars,
+        }),
+        [data, bars]
+    )
diff --git a/packages/marimekko/src/types.ts b/packages/marimekko/src/types.ts
index e45cf9dcc..53fb644b2 100644
--- a/packages/marimekko/src/types.ts
+++ b/packages/marimekko/src/types.ts
@@ -45,12 +45,19 @@ export interface ComputedDatum<RawDatum> extends NormalizedDatum<RawDatum> {
     dimensions: DimensionDatum<RawDatum>[]
 }
 
+export interface BarDatum<RawDatum> extends DimensionDatum<RawDatum> {
+    key: string
+    borderColor: string
+    borderWidth: number
+}
+
 export type LabelAccessorFunction<RawDatum> = (datum: ComputedDatum<RawDatum>) => string | number
 
 export type LayerId = 'grid' | 'axes' | 'bars' | 'legends'
 
 export interface CustomLayerProps<RawDatum> {
-    nodes: ComputedDatum<RawDatum>
+    data: ComputedDatum<RawDatum>[]
+    bars: BarDatum<RawDatum>[]
 }
 
 export type CustomLayer<RawDatum> = React.FC<CustomLayerProps<RawDatum>>
diff --git a/website/src/data/components/marimekko/props.js b/website/src/data/components/marimekko/props.js
index c33690a7e..b9a155e93 100644
--- a/website/src/data/components/marimekko/props.js
+++ b/website/src/data/components/marimekko/props.js
@@ -50,11 +50,19 @@ const props = [
         help: 'Value accessor.',
         description: `
             Define how to access the value of each datum,
+            wich is gonna dictate the thickness of the bars,
             by default, nivo will look for the \`value\` property.
         `,
         type: 'string | (datum: RawDatum): number',
         required: true,
     },
+    {
+        key: 'dimensions',
+        group: 'Base',
+        help: 'Data dimensions configuration.',
+        type: '{ id: string, value: string | (datum: RawDatum) => number }',
+        required: true,
+    },
     {
         key: 'valueFormat',
         group: 'Base',